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Part: CY7B138-35JC
Category:
Description:
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Datasheet: Download CY7B138-35JC datasheet File size : 207 kB
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Datasheet text preview:
********** C-MOS 32K (4,096
-TOP VIEWVDD (+5V) 68 N C 67 66 65 64 8 9 7 NC 6
CY7B138-35JC(1/3) IL08
8)-BIT DUAL-PORT STATIC RAM
63 62 5 4 3 2 NC 1 1
10 11 12 13 14 GND 15 16 17 VDD (+5V) 18 GND 29 20 21 22 VDD (+5V) 23 24 25 6
28 NC 33 NC 34 NC 27 39 30 31 32
NC 6
5 60 59 58 57 56 55 54 53 GND 52 51 40 49 48 47 46 45 4
35 GND
36 NC
37
38
49
40
41
42
3
CY7B138-35JC (2/3)
A0 L/R - A11 L/R BUSY L/R CE L/R INT L/R I/O 0 L/R - I/O 7 M/S OE L/R R/W L/R SEM L/R ; ADDRESS INPUTS ; BUSY OUTPUT ; CHIP ENABLE INPUT ; INTERRUPT OUTPUT ; DATA INPUTS / OUTPUTS ; MAIN/SUB SELECT INPUT ; OUTPUT ENABLE INPUT ; READ / WRITE ENABLE INPUT ; SEMAPHORE ENABLE INPUT
L/R
(VDD = +5V) NIN I/O O. 2 3 4 5 6 7 8 9 1 10 11 12 13 14 15 16 7 P1 -- I I I I -- I I/O I/O I/O I/O I/O -- /O I I/O -- /O -- SIGNAL NC CC EL SEM L R/W L OE L I NC /O 0 L I/O 1 L I/O 2 L I/O 3 L I/O 4 L I/O 5 L I GND /O 6 L I/O 7 L VDD 1 NIN P I/O O. 18 29 20 21 22 23 24 25 26 27 28 39 30 31 32 33 4 I-- I/O I/O -- /O I I/O I/O I/O I/O -- /O O I I I -- -- SIGNAL I GND /O 0 R I/O 1 R I/O 2 R I VDD /O 3 R I/O 4 R I/O 5 R I/O 6 R I/O 7 R OC N ER R/W R SEM R CE R NC C NIN P I/O O. 35 36 37 38 49 40 41 42 43 44 45 46 47 48 59 50 1 -- I I I I I I I I I I I I O O I SIGNAL ND N AC 11 R A10 R A9 R A8 R A7 R A6 R A5 R A4 R A3 R A2 R A1 R 0R INT R BUSY R M G /S NIN P I/O O. 52 53 54 55 56 57 58 69 60 61 62 63 64 65 66 67 8 -- O I I I I I I I I I I I I I -- -- SIGNAL BGND USY L INT L A0L A1L A2L A3L A4L A5L A6L A7L A8L A9L A 10 L A 11 L VC N
DD
CY7B138-35JC (3/3)
R/W CE 5
L
30 32
3
L
R/W R CE
R
OE
6
L
29
OE
R
A11
66
L
37 (8) ญญญ (8) ญญญ 38
A11
R
A10
65
L
A10
R
I/O 7
16
L
27 (8)
I/O 7
R
I/O 0 BUSY A9
8
L
COL SEL
COLUMN I/O
COLUMN I/O
COL SEL
ญญญ
ญญญ
(8) 19 50 39 I/O 0 BUSY A9
R R
53
L
R
64
L
A0
55
L
(10)
ROW SELECT
MEMORY ARRAY
ROW SELECT
ญญญ
ญญญ
(10) 48 A0
R
A11
L
A11 R ญญญ (12) ญญญ (12) A0 R CE R OE R R/W R BUSY
R
A0 L CE L OE L R/W L BUSY L SEM INT 4
L L
INTERRUPT LOGIC
31 49 51 M/S
54
SEM INT R
R
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CY-1 CY-2 CY-3 CY-4 CY-5 CY-6 CY-7 CY-8 CY-9 CY-10 CY-11 CY-12 CY-13 CY-14 CY-15 CY-16 CY-17 CY-18 CY-19 CY-20 CY-21 CY-22 CY-23 CY-24 CY-25 CY-26 CY-27 CY-28 CY-29 CY-30 CY-31 CY-32 CY-33 CY-34 CY-35 CY-36 CY-37 CY-38 CY-39 CY-40 CY-41 CY-42 CY-43 CY-44 CY-45 CY-46 CY-47 CY-48 CY-49 CY-50 CY-51 CY-52
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