CY7C277-40WMB Cypress Semiconductor Corp, CY7C277-40WMB Datasheet - Page 4

• 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

Architecture Configuration Bits
Bit Map
Document #: 38-04006 Rev. *B
Timing Diagram (Input Latched)
(ASYNCH)
(SYNCH)
Timing Diagram (Input Transparent)
ALE
ALEP
E/E
(ASYNCH)
Note:
(SYNCH)
Architecture Bit
9.
Programmer Address
A
A
O
O
S
0
0
0
ALE is shown with positive polarity.
0
– A
–A
ALE
– O
– O
E
CP
E
CP
E
E
14
S
14
S
S
7
S
7
(Hex.)
0000
7FFF
8000
.
.
.
t
AL
t
t
CO
t
CO
t
t
HES
HES
LL
D
D
D
Architecture Verify D
1
2
0
0 = DEFAULT
1 = PGMED
0 = DEFAULT
1 = PGMED
0 = DEFAULT
1 = PGMED
t
t
t
t
SES
HZC
SES
HZC
t
LA
Control Byte
RAM Data
[9]
Data
Data
.
.
.
t
t
PWC
PWC
7
–D
0
HIGH Z
t
HIGH Z
t
PWC
PWC
t
t
HES
HES
Input Transparent
Input Latched
ALE = Active HIGH
ALE = Active LOW
Asynchronous Output Enable (E)
Synchronous Output Enable (E
Architecture Byte (8000
D7
C
7
C
6
t
t
SES
t
t
LZC
SES
LZC
C
5
C
4
t
t
C
SA
SA
3
C
2
C
t
t
HZE
1
HZE
Function
)
D0
C
0
S
)
t
t
HA
HA
HIGHZ
HIGHZ
t
t
LZE
LZE
CY7C277
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