CY7C188-25VC Cypress Semiconductor Corp, CY7C188-25VC Datasheet - Page 4

• Manufacturer Part Number: CY7C188-25VC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C188-25VC

• Density: 295Kb
• Access Time (max): 25ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOJ
• Operating Temp Range: 0C to 70C
• Supply Current: 165mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 32
• Word Size: 9b
• Lead Free Status / Rohs Status: Not Compliant

Switching Characteristics
Switching Waveforms
Document #: 38-05053 Rev. **
Notes:
Read Cycle No. 1
Read Cycle No. 2 (Chip-Enable Controlled)
Write Cycle No. 1 (WE Controlled)
Parameter
5.
6.
7.
8.
9.
DATA OUT
DATA OUT
CURRENT
ADDRESS
SUPPLY
Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
I
t
At any given temperature and voltage condition, t
The internal write time of the memory is defined by the overlap of CE
signal can terminate a write by being deasserted. The data input set-up and hold timing should be referenced to the rising edge of the signal that terminates the write.
The minimum write cycle time for write cycle #3 (WE controlled, OE LOW) is the sum of t
OL
HZOE
/I
OH
CE
V
, t
OE
CC
HZCE
and 30-pF load capacitance.
1
, and t
HZWE
[10,11]
are specified with C
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
Description
PU
t
LZCE
Over the Operating Range
L
t
t
[8,13,14,15]
LZOE
ACE
= 5 pF as in part (b) of AC Test Loads. Transition is measured 500 mV from steady-state voltage.
t
OHA
50%
t
DOE
HZCE
[11,12,13]
is less than t
t
AA
LZCE
Min.
t
RC
7C188–15
1
, LOW, CE
[2, 5]
, t
HZOE
Max.
is less than t
t
2
RC
HIGH, and WE LOW. All three signals must be asserted to initiate a write and any
HZWE
Min.
7C188–20
LZOE
DATA VALID
and t
, and t
SD
Max.
.
HZWE
is less than t
Min.
7C188–25
DATA VALID
LZWE
Max.
for any given device.
t
t
HZOE
HZCE
t
PD
Min.
7C188–35
50%
CY7C188
IMPEDANCE
Max.
HIGH
Page 4 of 8
C188–5
C188–6
Unit
ICC
ISB