CY7C271A-35WC Cypress Semiconductor Corp, CY7C271A-35WC Datasheet - Page 5

• Manufacturer Part Number: CY7C271A-35WC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C271A-35WC

• Density: 256Kb
• Organization: 32Kx8
• Interface Type: Parallel
• In System Programmable: In System/External
• Frequency (max): Not RequiredMHz
• Access Time (max): 35ns
• Package Type: Windowed CDIP
• Reprogramming Technique: UV
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 50mA
• Pin Count: 28
• Mounting: Through Hole
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

Table 2. Mode Selection
Programming Pinouts
Document #: 38-04013 Rev. *B
Read
Output Disable
Output Disable
Stand-by
Program
Program Verify
Program Inhibit
Signature (MFG)
Signature (DEV)
Note:
5.
6.
X can be V IL
V
HV
=12 0.5V
Mode
or V
IH
.
GND
A
A
A
A
A
A
D
D
D
A
A
7
6
5
4
3
2
1
0
0
1
2
CS
Top View
V
V
1
2
3
4
5
6
7
8
9
10
11
12
V
V
V
V
V
V
1
X
ILP
ILP
PP
PP
PP
DIP
/V
IH
IL
IL
PP
24
23
22
21
20
19
18
17
16
15
14
13
CS
V
A
PS
E
V
VFY
PGM
D
D
D
D
D
V
V
CC
8
PP
V
V
V
7
6
5
4
3
2
V
V
V
/PGM
X
IHP
IHP
ILP
ILP
ILP
IH
IH
IL
CE/VFY
V
V
V
V
V
V
V
V
V
IHP
IHP
ILP
ILP
ILP
IH
IL
IL
IL
Pin Function
NC
D
A
A
A
A
A
4
3
2
1
0
0
V
V
A
5
6
7
8
9
10
11
A
A
A
A
A
A
X
IHP
ILP
12
0
0
0
0
0
0
0
4
Top View
1314151617
3 2 1
PLCC
28
[5]
V
V
27
HV
HV
A
A
A
A
A
A
A
26
18
X
25
24
23
22
21
20
19
9
9
9
9
9
9
9
[6]
[6]
E
V
VFY
PGM
NC
D
D
PP
7
6
CY7C271A
O
O
High Z
High Z
High Z
D
Data
34H
20H
7
7
7
X
–O
–D
–O
Page 5 of 10
0
0
0