integrated silicon solution, inc. 1-800-379-4774 1 rev. d 12/15/00 is62lv12816ll issi ? issi reserves the right to make changes to its products at any time without notice in order to improve design and supply the be st possible product. we assume no responsibility for any errors which may appear in this publication. ? copyright 2000, integrated silicon solution, inc. 128k x 16 cmos static ram features ? high-speed access time: 55, 70, 100 ns ? cmos low power operation C 120 mw (typical) operating C 6 w (typical) cmos standby ? ttl compatible interface levels ? single 2.5v-3.45v v cc power supply ? fully static operation: no clock or refresh required ? three state outputs ? data control for upper and lower bytes ? industrial temperature available ? available in the 44-pin tsop (type ii) and 48-pin mini bga (6mm x 8mm) description the issi is62lv12816ll is a high-speed, 2,097,152-bit static ram organized as 131,072 words by 16 bits. it is fabricated using issi 's high-performance cmos technology. this highly reliable process coupled with innovative circuit design techniques, yields high-performance and low power consumption devices. when ce is high (deselected), the device assumes a standby mode at which the power dissipation can be reduced down with cmos input levels. easy memory expansion is provided by using chip enable and output enable inputs, ce and oe . the active low write enable ( we ) controls both writing and reading of the memory. a data byte allows upper byte ( ub ) and lower byte ( lb ) access. the is62lv12816ll is packaged in the jedec standard 44-pin tsop (type ii) and 48-pin mini bga. (6mm x 8mm) functional block diagram november 2000 a0-a16 ce oe we 128k x 16 memory array decoder column i/o control circuit gnd vcc i/o data circuit i/o0-i/o7 lower byte i/o8-i/o15 upper byte ub lb
is62lv12816ll issi ? 2 integrated silicon solution, inc. 1-800-379-4774 rev. d 12/15/00 pin configurations 44-pin tsop (type ii) truth table i/o pin mode we ce oe lb ub i/o0-i/o7 i/o8-i/o15 vcc current not selected x h x x x high-z high-z i sb 1 , i sb 2 output disabled h l h x x high-z high-z i cc x l x h h high-z high-z read h l l l h d out high-z i cc h l l h l high-z d out hllll d out d out write l l x l h d in high-z i cc l l x h l high-z d in llxll d in d in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 a4 a3 a2 a1 a0 ce i/o0 i/o1 i/o2 i/o3 vcc gnd i/o4 i/o5 i/o6 i/o7 we a16 a15 a14 a13 a12 a5 a6 a7 oe ub lb i/o15 i/o14 i/o13 i/o12 gnd vcc i/o11 i/o10 i/o9 i/o8 nc a8 a9 a10 a11 nc 48-pin mini bga 1 2 3 4 5 6 a b c d e f g h lb oe a0 a1 a2 n/c i/o 8 ub a3 a4 ce i/o 0 i/o 9 i/o 10 a5 a6 i/o 1 i/o 2 gnd i/o 11 nc a7 i/o 3 vcc vcc i/o 12 nc a16 i/o 4 gnd i/o 14 i/o 13 a14 a15 i/o 5 i/o 6 i/o 15 nc a12 a13 we i/o 7 nc a8 a9 a10 a11 nc pin descriptions a0-a16 address inputs i/o0-i/o15 data inputs/outputs ce chip enable input oe output enable input we write enable input lb lower-byte control (i/o0-i/o7) ub upper-byte control (i/o8-i/o15) nc no connection vcc power gnd ground
is62lv12816ll issi ? integrated silicon solution, inc. 1-800-379-4774 3 rev. d 12/15/00 1 2 3 4 5 6 7 8 9 10 11 12 dc electrical characteristics (over operating range) symbol parameter test conditions min. max. unit v oh output high voltage v cc = min., i oh = C1 ma 2.0 v v ol output low voltage v cc = min., i ol = 2.1 ma 0.4 v v ih input high voltage 2.2 v cc + 0.2 v v il (1) input low voltage C0.2 0.4 v i li input leakage gnd v in v cc C1 1 a i lo output leakage gnd v out v cc , outputs disabled C1 1 a notes: 1. v il (min.) = C2.0v for pulse width less than 10 ns. absolute maximum ratings (1) symbol parameter value unit v term terminal voltage with respect to gnd C0.5 to vcc+0.5 v t bias temperature under bias C40 to +85 c v cc vcc related to gnd C0.3 to +4.0 v t stg storage temperature C65 to +150 c p t power dissipation 1.0 w note: 1. stress greater than those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. operating range range ambient tem perature v cc commercial 0c to +70c 2.5v - 3.45v industrial C40c to +85c 2.5v - 3.45v capacitance (1) symbol parameter conditions max. unit c in input capacitance v in = 0v 6 pf c out input/output capacitance v out = 0v 8 pf note: 1. tested initially and after any design or process changes that may affect these parameters.
is62lv12816ll issi ? 4 integrated silicon solution, inc. 1-800-379-4774 rev. d 12/15/00 ac test conditions parameter unit input pulse level 0.4v to 2.2v input rise and fall times 5 ns input and output timing 1.3v and reference level output load see figures 1 and 2 ac test loads 3070 ? 100 pf including jig and scope 3150 ? output 3.0v figure 1 3070 ? 5 pf including jig and scope 3150 ? output 3.0v figure 2 power supply characteristics (1) (over operating range) -55 -70 -100 symbol parameter test conditions min. max. min. max. min. max. unit i cc vcc dynamic operating v cc = max., com. 40 30 20 ma supply current i out = 0 ma, f = f max ind. 60 50 40 i sb 1 ttl standby current v cc = max., com. 0.4 0.4 0.4 ma (ttl inputs) v in = v ih or v il ind. 1.0 1.0 1.0 ce v ih , f = 0 i sb 2 cmos standby v cc = max., com. 5 5 5 a current (cmos inputs) ce v cc C 0.2v, ind. 5 5 5 v in v cc C 0.2v, or v in 0.2v, f = 0 note: 1. at f = f max , address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
is62lv12816ll issi ? integrated silicon solution, inc. 1-800-379-4774 5 rev. d 12/15/00 1 2 3 4 5 6 7 8 9 10 11 12 read cycle switching characteristics (1) (over operating range) -55 -70 -100 symbol parameter min. max. min. max. min. max. unit t rc read cycle time 55 70 100 ns t aa address access time 55 70 100 ns t oha output hold time 10 10 15 ns t ace ce access time 55 70 100 ns t doe oe access time 30 35 50 ns t hzoe (2) oe to high-z output 20 25 30 ns t lzoe (2) oe to low-z output 5 5 5 ns t hzce (2) ce to high-z output 0 20 0 25 0 30 ns t lzce (2) ce to low-z output 10 10 10 ns t ba lb , ub access time 20 35 50 ns t hzb lb , ub to high-z output 0 25 0 25 0 35 ns t lzb lb , ub to low-z output 0 0 0 ns notes: 1. test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5v, input pulse levels of 0.4 to 2.2v and output loading specified in figure 1. 2. tested with the load in figure 2. transition is measured 500 mv from steady-state voltage. not 100% tested. data valid previous data valid t aa t oha t oha t rc d out address ac waveforms read cycle no. 1 (1,2) (address controlled) ( ce = oe = v il , ub or lb = v il )
is62lv12816ll issi ? 6 integrated silicon solution, inc. 1-800-379-4774 rev. d 12/15/00 write cycle switching characteristics (1,2) (over operating range) -55 -70 -100 symbol parameter min. max. min. max. min. max. unit t wc write cycle time 55 70 100 ns t sce ce to write end 50 65 80 ns t aw address setup time to write end 50 65 80 ns t ha address hold from write end 0 0 0 ns t sa address setup time 0 0 0 ns t pwb lb , ub valid to end of write 45 60 80 ns t pwe we pulse width 45 60 80 ns t sd data setup to write end 25 30 40 ns t hd data hold from write end 0 0 0 ns t hzwe (3) we low to high-z output 30 30 40 ns t lzwe (3) we high to low-z output 5 5 5 ns notes: 1. test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5v, input pulse levels of 0.4v t o 2.2v and output loading specified in figure 1. 2. the internal write time is defined by the overlap of ce low and ub or lb , and we low. all signals must be in valid states to initiate a write, but any one can go inactive to terminate the write. the data input setup and hold timing are referenced to the rising or falling edge of the signal that terminates the write. 3. tested with the load in figure 2. transition is measured 500 mv from steady-state voltage. not 100% tested. t rc t oha t aa t doe t lzoe t ace t lzce t hzoe high-z data valid t hzb address oe ce lb, ub d out t hzce t ba t lzb ac waveforms read cycle no. 2 (1,3) ( cs , oe , and ub / lb controlled) notes: 1. we is high for a read cycle. 2. the device is continuously selected. oe , ce , ub , or lb = v il . 3. address is valid prior to or coincident with ce low transition.
is62lv12816ll issi ? integrated silicon solution, inc. 1-800-379-4774 7 rev. d 12/15/00 1 2 3 4 5 6 7 8 9 10 11 12 notes: 1. write is an internally generated signal asserted during an overlap of the low states on the cs and we inputs and at least one of the lb and ub inputs being in the low state. 2. write = ( cs ) [ ( lb ) = ( ub ) ] ( we ). ac waveforms write cycle no. 1 (1,2) ( cs controlled, oe = high or low) data undefined t wc valid address t scs t pwe1 t pwe2 t aw t ha high-z t pbw t hd t sa t hzwe address cs ub, lb we d out d in data in valid t lzwe t sd ub_cswr1.eps
is62lv12816ll issi ? 8 integrated silicon solution, inc. 1-800-379-4774 rev. d 12/15/00 write cycle no. 2 ( we controlled: oe is high during write cycle) data undefined low t wc valid address t pwe1 t aw t ha high-z t pbw t hd t sa t hzwe address cs ub, lb we d out d in oe data in valid t lzwe t sd ub_cswr2.eps write cycle no. 3 ( we controlled: oe is low during write cycle) data undefined t wc valid address low low t pwe2 t aw t ha high-z t pbw t hd t sa t hzwe address cs ub, lb we d out d in oe data in valid t lzwe t sd ub_cswr3.eps
is62lv12816ll issi ? integrated silicon solution, inc. 1-800-379-4774 9 rev. d 12/15/00 1 2 3 4 5 6 7 8 9 10 11 12 data retention switching characteristics symbol parameter test condition min. max. unit v dr vcc for data retention see data retention waveform 1.5 3.45 v i dr data retention current vcc = 2.0v, ce vcc C 0.2v 5 a t sdr data retention setup time see data retention waveform 0 ns t rdr recovery time see data retention waveform t rc ns data retention waveform ( ce controlled) v cc ce v cc ? 0.2v t sdr t rdr v dr ce gnd 2.3v 2.0v data retention mode
is62lv12816ll issi ? 10 integrated silicon solution, inc. 1-800-379-4774 rev. d 12/15/00 issi ? integrated silicon solution, inc. 2231 lawson lane santa clara, ca 95054 tel: 1-800-379-4774 fax: (408) 588-0806 e-mail: sales@issi.com www.issi.com ordering information commercial range: 0c to +70c speed (ns) order part no. package 55 is62lv12816ll-55t tsop (type ii) is62lv12816ll-55b mini bga (6mm x 8mm) 70 is62lv12816ll-70t tsop (type ii) is62lv12816ll-70b mini bga (6mm x 8mm) 100 is62lv12816ll-10t tsop (type ii) is62lv12816ll-10b mini bga (6mm x 8mm) industrial range: C40c to +85c speed (ns) order part no. package 55 is62lv12816ll-55ti tsop (type ii) is62lv12816ll-55bi mini bga 70 is62lv12816ll-70ti tsop (type ii) is62lv12816ll-70bi mini bga 100 is62lv12816ll-10ti tsop (type ii) is62lv12816ll-10bi mini bga (6mm x 8mm)
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