PRELIMINARY
CY7C024AV/025AV/026AV
CY7C0241AV/0251AV/036AV
Pin Definitions
Left Port
CEL
R/WL
OEL
A0L–A13L
I/O0L–I/O17L
SEML
UBL
LBL
INTL
BUSYL
M/S
VCC
GND
NC
Right Port
CER
R/WR
OER
A0R–A13R
I/O0R–I/O17R
SEMR
UBR
LBR
INTR
BUSYR
Description
Chip Enable
Read/Write Enable
Output Enable
Address (A0–A11 for 4K devices; A0–A12 for 8K devices; A0–A13 for 16K)
Data Bus Input/Output
Semaphore Enable
Upper Byte Select (I/O8–I/O15 for x16 devices; I/O9–I/O17 for x18 devices)
Lower Byte Select (I/O0–I/O7 for x16 devices; I/O0–I/O8 for x18 devices)
Interrupt Flag
Busy Flag
Master or Slave Select
Power
Ground
No Connect
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature .................................–65°C to +150°C
Ambient Temperature with
Power Applied .............................................–55°C to +125°C
Supply Voltage to Ground Potential ............... –0.5V to +4.6V
DC Voltage Applied to
Outputs in High Z State ...........................–0.5V to VCC+0.5V
DC Input Voltage[10] .................................–0.5V to VCC+0.5V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage .......................................... >2001V
Latch-Up Current .................................................... >200 mA
Operating Range
Range
Ambient
Temperature
Commercial
Industrial[11]
0°C to +70°C
–40°C to +85°C
Shaded areas contain advance information.
VCC
3.3V ± 300 mV
3.3V ± 300 mV
Notes:
10. Pulse width < 20 ns.
11. Industrial parts are available in CY7C026AV and CY7C036AV only.
5