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ht93lc86 cmos 16k 3-wire serial eeprom block diagram pin assignment rev. 1.40 1 july 10, 2009 features operating voltage: 2.2v~5.5v low power consumption operating: 5ma max. standby: 10 a max. user selectable internal organization 16k: 2048 8 or 1024 16 3-wire serial interface write cycle time: 5ms max. automatic erase-before-write operation word/chip erase and write operation write operation with built-in timer software controlled write protection 40-year data retention 10 6 rewrite cycles per word commercial temperature range (0 cto+70 c) 8-pin dip/sop/tssop package general description the ht93lc86 is a 16k-bit low voltage nonvolatile, serial electrically erasable programmable read only memory de - vice using a cmos floating gate process. its 16384 bits of memory are organised into 1024 words of 16 bits each when the org pin is connected to vcc or organised into 2048 words of 8 bits each when it is tied to vss. the de - vice is especially suitable for use in many industrial and commercial applications where low power and low voltage operation are essential. the device can easily interface to microcontrollers using the versatile serial interface com - pose of (cs), serial clock (sk), data input (di) and data output (do).

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pin description pin name i/o description cs i chip select input sk i serial clock input di i serial data input do o serial data output vss negative power supply, ground org i internal organization when org is connected to vdd or left floating, the ( 16) memory organization is selected. when org is connected to vss, the ( 8) memory organization is selected. the org pin is connected to an internal pull-high resistor. nc no connection vcc positive power supply absolute maximum ratings supply voltage ...........................v ss 0.3v to v ss +6.0v storage temperature ............................ 50 cto125 c input voltage.............................v ss 0.3v to v dd +0.3v operating temperature...............................0 cto70 c note: these are stress ratings only. stresses exceeding the range specified under absolute maximum ratings may cause substantial damage to the device. functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil - ity. d.c. characteristics symbol parameter test conditions min. typ. max. unit v cc conditions v cc operating voltage 2.2 5.5 v i cc1 operating current (ttl) 5v do no load, sk=1mhz 5ma i cc2 operating current (cmos) 5v do no load, sk=1mhz 5ma 2.2v~5.5v do no load, sk=250khz 5ma i stb standby current (cmos) 5v cs=sk=di=0v 10 a i li input leakage current 5v v in =v ss ~v cc 0 1 a i lo output leakage current 5v v out =v ss ~v cc , cs=0v 0 1 a v il input low voltage 5v 0 0.8 v 2.2v~5.5v 0 0.1v cc v v ih input high voltage 5v 2 v cc v 2.2v~5.5v 0.9v cc v cc v v ol output low voltage 5v i ol =2.1ma 0.4 v 2.2v~5.5v i ol =10 a 0.2 v v oh output high voltage 5v i oh = 400 a 2.4 v 2.2v~5.5v i oh = 10 av cc 0.2 v c in input capacitance v in =0v, f=250khz 5pf c out output capacitance v out =0v, f=250khz 5pf ht93lc86 rev. 1.40 2 july 10, 2009
a.c. characteristics symbol parameter v cc =5v 10% v cc =3v 10% v cc =2.2v unit min. max. min. max. min. max. f sk clock frequency 0 2000 0 500 0 250 khz t skh sk high time 250 1000 2000 ns t skl sk low time 250 1000 2000 ns t css cs setup time 50 200 200 ns t csh cs hold time 0 0 0 ns t cds cs deselect time 250 250 1000 ns t dis di setup time 100 200 400 ns t dih di hold time 100 200 400 ns t pd1 do delay to 1 250 1000 2000 ns t pd0 do delay to 0 250 1000 2000 ns t sv status valid time 250 250 250 ns t hz do disable time 100 200 400 ns t pr write cycle time 5 5 5ms a.c. test conditions input rise and fall time: 5ns (1v to 2v) input and output timing reference levels: 1.5v output load circuit: see figure right ht93lc86 rev. 1.40 3 july 10, 2009 & ( / 0 % 1 2 3 - % . 0

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ht93lc86 rev. 1.40 4 july 10, 2009 functional description the ht93lc86 is accessed via a three-wire serial com - munication interface. the device is arranged into 1024 words by 16 bits or 2048 words by 8 bits depending whether the org pin is connected to vcc or vss. the ht93lc86 contains seven instructions: read, erase, write, ewen, ewds, eral and wral. when the user selectable internal organization is arranged into 1024 16 (2048 8), these instructions are all made up of 13(14) bits data: 1 start bit, 2 op code bits and 10(11) ad - dress bits. by using the control signal cs, sk and data input signal di, these instructions can be transmitted to the ht93lc86. these serial instruction data presented at the di input will be written into the device on the rising edge of sk. during the read cycle, the do pin acts as the data output and during the write or erase cycle, the do pin indicates the busy/ready status. when the do pin is active for reading data or as a busy/ready indicator the cs pin must be high; other - wise the do pin will be in a high-impedance state. for successful instruction execution, cs must be pulled low once after the instruction is sent. after power on, the de - vice is by default in the ewds state. an ewen instruc - tion must be performed before any erase or write instruction can be executed. the following are the func- tional descriptions and timing diagrams of all seven in- structions. read the read instruction will stream out data at a specified address on the do pin. the data on do pin changes during the low-to-high edge of sk signal. the 8 bit or 16 bit data stream is preceded by a logical 0 dummy bit. irrespective of the condition of the ewen or ewds in - struction, the read command is always valid and inde - pendent of these two instructions. after the data word has been read the internal address will be automatically incremented by 1 allowing the next consecutive data word to be read out without entering further address data. the address will wrap around with cs high until cs returns to low. ewen/ewds the ewen/ewds instruction will enable or disable the programming capabilities. at both the power on and power off state the device automatically enters the disable mode. before a write, erase, wral or eral instruc - tion is given, the programming enable instruction ewen must be issued, otherwise any erase/write instruc - tions will be invalid. after the ewen instruction is issued, the programming enable condition remains until the power is removed off until an ewds instruction is issued. no data can be written into the device in the programming disable state. by so doing, the internal memory data can be pro - tected. erase the erase instruction erases data at the specified ad - dresses in the programming enable mode. after the erase op-code and the specified address have been issued, the data erase is activated by the falling edge of cs. since the internal auto-timing generator provides all timing signals for the internal erase, the sk clock is not required. during the internal erase, the busy/ready sta - tus can be verified by keeping cs high. if busy, the do pin will remain low but when the operation is over, the do pin will return to a high level permitting further in - structions to be executed. write the write instruction writes data into the device at the specified addresses in the programming enable mode. after the write op-code and the specified address and data have been issued, the data writing is activated by the falling edge of cs. since the internal auto-timing generator provides all timing signal for the internal writ - ing, the sk clock is not required. the auto-timing write cycle includes an automatic erase-before-write capabil - ity. it is therefore not necessary to erase data before the write instruction is issued. during the internal writing, the busy/ready status can be verified by keeping cs high. if busy, the do pin will remain low but when the operation is over, the do pin will return to a high level permitting further instructions to be executed. eral the eral instruction erases the entire 1024 16 or 2048 8 memory cells to a logical 1 state in the pro- gramming enable mode. after the erase-all instruction has been issued, the data erase feature is activated by the falling edge of cs. since the internal auto-timing generator provides all timing signal for the erase-all op - eration, the sk clock is not required. during the internal erase-all operation, the busy/ready status can be veri - fied by keeping cs high. if busy, the do pin will remain low but when the operation is over, the do pin will return to a high level permitting further instructions to be exe - cuted. wral the wral instruction writes data into the entire 1024 16 or 2048 8 memory cells in the programming enable mode. after the write-all instruction set has been issued, the data writing is activated by the falling edge of cs. since the internal auto-timing generator provides all timing signals for the write-all operation, the sk clock is not required. during the internal write-all operation, the busy/ready status can be verified by keeping cs high. if busy, the do pin will remain low but when the operation is over, the do pin will return to a high level permitting further instructions to be executed.
timing diagrams read ewen/ewds write erase ht93lc86 rev. 1.40 5 july 10, 2009 # # # 9 $ # 9 1 : ; : . 1 : ; # # # & 5 < 6 7 5 < 7 $ # 9 5 7 # 0 0 " " ( '

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eral wral instruction set summary instruction comments start bit op code address org=0 org=1 x8 x16 data org=0 org=1 x8 x16 read read data 1 10 a10~a0 a9~a0 d7~d0 d15~d0 erase erase data 1 11 a10~a0 a9~a0 write write data 1 01 a10~a0 a9~a0 d7~d0 d15~d0 ewen erase/write enable 1 00 11xxxxxxxxx 11xxxxxxxx ewds erase/write disable 1 00 00xxxxxxxxx 00xxxxxxxx eral erase all 1 00 10xxxxxxxxx 10xxxxxxxx wral write all 1 00 01xxxxxxxxx 01xxxxxxxx d7~d0 d15~d0 note: x stands for don
t care data should be written to the eeprom in the format (8-bit or 16-bit mode) in which it is to be read. ht93lc86 rev. 1.40 6 july 10, 2009 # # & 5 < 6 7 # 9 $ 5 7 # % 8 ! # 9 ' " @ * # 9 # # & 5 < 6 7 # 9 $ 5 7 # % 8 ! # 9 ' " @ * ? # 9
package information 8-pin dip (300mil) outline dimensions symbol dimensions in mil min. nom. max. a 355 375 b 240 260 c 125 135 d 125 145 e16 20 f50 70 g 100 h 295 315 i 375 ht93lc86 rev. 1.40 7 july 10, 2009 - ) : / 5 $
8-pin sop (150mil) outline dimensions ms-012 symbol dimensions in mil min. nom. max. a 228 244 b 150 157 c12 20 c
188 197 d 69 e 50 f4 10 g16 50 h7 10 0 8 ht93lc86 rev. 1.40 8 july 10, 2009 / a 5 : ) -
8-pin tssop outline dimensions symbol dimensions in mm min. nom. max. a 1.05 1.20 a1 0.05 0.15 a2 0.95 1.05 b 0.25 c 0.11 0.15 d 2.90 3.10 e 6.20 6.60 e1 4.30 4.50 e 0.65 l 0.50 0.70 l1 0.90 1.10 y 0.10 0 8 ht93lc86 rev. 1.40 9 july 10, 2009 : ) ! 2 & ! . : ! # : -
product tape and reel specifications reel dimensions sop 8n, tssop 8l symbol description dimensions in mm a reel outer diameter 330.0 1.0 b reel inner diameter 100.0 1.5 c spindle hole diameter 13.0 +0.5/-0.2 d key slit width 2.0 0.5 t1 space between flange 12.8 +0.3/-0.2 t2 reel thickness 18.2 0.2 ht93lc86 rev. 1.40 10 july 10, 2009 ) b b
carrier tape dimensions sop 8n symbol description dimensions in mm w carrier tape width 12.0 +0.3/-0.1 p cavity pitch 8.0 0.1 e perforation position 1.75 0.1 f cavity to perforation (width direction) 5.5 0.1 d perforation diameter 1.55 0.10 d1 cavity hole diameter 1.50+0.25 p0 perforation pitch 4.0 0.1 p1 cavity to perforation (length direction) 2.0 0.1 a0 cavity length 6.4 0.1 b0 cavity width 5.2 0.1 k0 cavity depth 2.1 0.1 t carrier tape thickness 0.30 0.05 c cover tape width 9.3 0.1 tssop 8l symbol description dimensions in mm w carrier tape width 12.0 +0.3/-0.1 p cavity pitch 8.0 0.1 e perforation position 1.75 0.10 f cavity to perforation (width direction) 5.5 0.5 d perforation diameter 1.5 +0.1/-0.0 d1 cavity hole diameter 1.5 +0.1/-0.0 p0 perforation pitch 4.0 0.1 p1 cavity to perforation (length direction) 2.0 0.1 a0 cavity length 7.0 0.1 b0 cavity width 3.6 0.1 k0 cavity depth 1.6 0.1 t carrier tape thickness 0.300 0.013 c cover tape width 9.3 0.1 ht93lc86 rev. 1.40 11 july 10, 2009 8 ; 8 8 : / ) $ ( ( <
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ht93lc86 rev. 1.40 12 july 10, 2009 copyright 2009 by holtek semiconductor inc. the information appearing in this data sheet is believed to be accurate at the time of publication. however, holtek as - sumes no responsibility arising from the use of the specifications described. the applications mentioned herein are used solely for the purpose of illustration and holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. holtek
s products are not authorized for use as critical components in life support devices or systems. holtek reserves the right to alter its products without prior notification. for the most up-to-date information, please visit our web site at http://www.holtek.com.tw. holtek semiconductor inc. (headquarters) no.3, creation rd. ii, science park, hsinchu, taiwan tel: 886-3-563-1999 fax: 886-3-563-1189 http://www.holtek.com.tw holtek semiconductor inc. (taipei sales office) 4f-2, no. 3-2, yuanqu st., nankang software park, taipei 115, taiwan tel: 886-2-2655-7070 fax: 886-2-2655-7373 fax: 886-2-2655-7383 (international sales hotline) holtek semiconductor inc. (shenzhen sales office) 5f, unit a, productivity building, no.5 gaoxin m 2nd road, nanshan district, shenzhen, china 518057 tel: 86-755-8616-9908, 86-755-8616-9308 fax: 86-755-8616-9722 holtek semiconductor inc. (chengdu sales office) 709, building 3, champagne plaza, no.97 dongda street, chengdu, sichuan, china 610016 tel: 86-28-6653-6590 fax: 86-28-6653-6591

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