CY7C144-35AC Cypress Semiconductor Corp, CY7C144-35AC Datasheet - Page 3

• Manufacturer Part Number: CY7C144-35AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C144-35AC

• Density: 64Kb
• Access Time (max): 35ns
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Supply Current: 160mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Word Size: 8b
• Lead Free Status / Rohs Status: Not Compliant

Document #: 38-06034 Rev. *C
Pin Configurations
Pin Definitions
Selection Guide
I/O
A
CE
OE
R/W
SEM
INT
BUSY
M/S
V
GND
Maximum Access Time
Maximum Operating Current
Maximum Standby Current for I
Left Port
0L−12L
CC
0L−7L(8L)
L
L
L
L
L
L
I/O
A
CE
OE
R/W
SEM
INT
BUSY
Right Port
0R−12R
0R−7R(8R)
R
R
R
R
R
R
(continued)
Data bus Input/Output
Address Lines
Chip Enable
Output Enable
Read/Write Enable
Semaphore Enable. When asserted LOW, allows access to eight semaphores. The three least signif-
icant bits of the address lines will determine which semaphore to write or read. The I/O
when writing to a semaphore. Semaphores are requested by writing a 0 into the respective location.
Interrupt Flag. INT
location 1FFE. INT
location 1FFF.
Busy Flag
Master or Slave Select
Power
Ground
/O
/O
/O
/O
GND
/O
/O
GND
/O
/O
/O
V
O
V
O
O
O
NC
NC
NC
CC
CC
0R
1R
2R
3R
4R
5R
6R
2L
3L
4L
5L
6L
7L
SB1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
7C144-15
7C145-15
L
R
is set when right port writes location 1FFE and is cleared when left port reads
220
60
is set when left port writes location 1FFF and is cleared when right port reads
15
80-Pin TQFP
Top View
CY7C145
7C144-25
7C145-25
180
25
40
Description
7C144-35
7C145-35
160
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
35
30
A
A
A
A
A
A
INT
BUSY
GND
M/S
A
A
A
A
A
BUSY
INT
NC
NC
NC
5L
4L
3L
2L
1L
0L
0R
1R
2R
3R
4R
L
R
L
R
7C144-55
7C145-55
160
55
30
CY7C144
CY7C145
0
Page 3 of 20
pin is used
Unit
mA
mA
ns
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