CY7C277-40WMB Cypress Semiconductor Corp, CY7C277-40WMB Datasheet - Page 5

• Manufacturer Part Number: CY7C277-40WMB
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C277-40WMB

• Density: 256Kb
• Organization: 32Kx8
• Access Time (max): 20ns
• Operating Current: 130mA
• Interface Type: Parallel
• Package Type: Windowed CDIP
• Operating Temperature Classification: Military
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: -55C to 125C
• Pin Count: 28
• Mounting: Through Hole
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Not Compliant

Programming Information
Programming support is available from Cypress as well as
from a number of third-party software vendors. For detailed
Table 1. Mode Selection
Document #: 38-04006 Rev. *B
Read
Output Disable
Program
Program Verify
Program Inhibit
Blank Check
Note:
10. X = “don’t care” but not to exceed V
Mode
Read or Output Disable
Other
CC
5%.
A
A
A
A
A
A
A
A
14
14
14
14
14
14
14
14
Figure 1. Programming Pinouts
–A
–A
–A
–A
–A
–A
–A
–A
0
0
0
0
0
0
0
0
GND
D
D
D
A
A
A
A
A
A
A
A
A
A
9
8
7
6
5
4
3
2
1
0
0
1
2
E, E
VFY
V
V
V
V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
V
V
Top View
IHP
IHP
ILP
ILP
IH
IL
DIP
S
programming information, including a listing of software
packages, please see the PROM Programming Information
located at the end of this section. Programming algorithms can
be obtained from any Cypress representative.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
A
A
A
A
A
V
PGM
VFY
D
D
D
D
D
CC
10
11
12
13
14
PP
7
6
5
4
3
Pin Function
V
V
IHP
IHP
PGM
V
V
CP
V
X
IHP
ILP
IH
/V
/V
ILP
ILP
[10]
ALE
V
V
V
V
V
V
X
PP
PP
PP
PP
PP
IL
CY7C277
O
High Z
High Z
Page 5 of 8
D
O
O
O
D
7
7
7
7
7
7
–O
–D
–O
–D
–O
–O
0
0
0
0
0
0