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Datasheet File OCR Text:

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C-MOS 4 K (512 X 8)-BIT PROM WITH REGISTER
-TOP VIEW22 PS A8 A7 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
CY7C225-30PC (1/2) IL00
A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2
IN
1 2 3 4 5 6 7 8 9 10 11 12 GND
VDD 24 ( )
+5V
23 1 IN
17 16 15 14 13 11 10 9
IN
23 A8 22 PS 21 E
2 3
IN
IN
4 5
IN
IN
6 7 IN
IN
20 CLR 19 ES 18 C
8 18
IN
IN
21 19
E ES CLR 20
IN
IN
IN
17 D7 16 D6 15 D5 14 D4 13 D3
OUT
OUT
OUT
OUT
OUT
OUT
OUT
A0 - A14 CLR CK D0 - D7 E ES PS
; ; ; ; ; ; ;
ADDRESS INPUTS CLEAR INPUT CLOCK INPUT DATA OUTPUTS ASYNCHRONOUS ENABLE INPUT SYNCHRONOUS ENABLE INPUT PRESET INPUT
OUT
MODE SELECTION CK ES CLR E X 0 1 0 X 1 1 X X X 1 1 X 0 0 0 X 0 1 0 0 1 VPP 1 1 VPP 0 1 1 VPP 1 1 0 VPP 1 1 0 VPP 0 0 VPP 0 1 0 0 1 X HI-Z VPP ; ; ; ; ;
PS 1 1 1 1 0 1 1 1 1 1 1
OUTPUTS DATA OUT HI-Z HI-Z ZEROS ONES DATA IN DATA OUT HI-Z DATA IN DATA OUT HI-Z
MODE READ OUTPUT DISABLE OUTPUT DISABLE CLEAR PRESET PROGRAM PROGRAM VERIFY PROGRAM INHIBIT INTELLIGENT PROGRAM BLANK CHECK ONES BLANK CHECK ZEROS
LOW LEVEL HIGH LEVEL DON'T CARE (NOT TO EXCEED VPP) HIGH IMPEDANCE PROGRAM VOLTAGE (+13V TO +14V)
CY7C225-30PC (2/2)
CLR 20
R 23 1 2 3 4
17
8-BIT EDGE-TRIGGERED REGISTER
D7
22 X 128 PROGRAMMABLE ARRAY
ROW DECODER 1 OF 32
8 X 1 OF 16
A8 A7 A6 A5 A4
16
D6
15
D5
14
D4
S
CP
13
D3
COLUMN DECODER 1 OF 16
11
D2
A3 A2 A1 A0
5 6 7 8
10
D1
9
D0
PS CK
22 18
ES
19
D
Q Q
E
21

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