CY7C168A-25PC Cypress Semiconductor Corp, CY7C168A-25PC Datasheet - Page 4

• Manufacturer Part Number: CY7C168A-25PC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C168A-25PC

• Density: 16Kb
• Access Time (max): 25ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 12b
• Package Type: PDIP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 1
• Supply Current: 90mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 20
• Word Size: 4b
• Number Of Words: 4K
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Switching Characteristics
Document #: 38-05029 Rev. **
Notes:
10. WE is HIGH for read cycle.
11. Device is continuously selected, CE = V
READ CYCLE
t
t
t
t
t
t
t
t
t
t
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
6.
7.
8.
9.
Parameter
Read Cycle No. 1
RC
AA
OHA
ACE
LZCE
HZCE
PU
PD
RCS
RCH
WC
SCE
AW
HA
SA
PWE
SD
HD
LZWE
HZWE
DATA OUT
ADDRESS
Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified
I
At any given temperature and voltage condition, t
(b) of AC Test Loads and Waveforms.
t
The internal write time of the memory is defined by the overlap of CE LOW and WE LOW. Both signal must be LOW to initiate a write and either signal can terminate a
write by going high. The data input set-up and hold timing should be referenced to the rising edge of the signal that terminates the write.
OL
HZCE
/I
OH
and t
and 30-pF load capacitance.
HZWE
Read Cycle Time
Address to Data Valid
Output Hold from Address Change
Power Supply Current
CE LOW to Low Z
CE HIGH to High Z
CE LOW to Power Up
CE HIGH to Power-Down
Read Command Set-Up
Read Command Hold
Write Cycle Time
CE LOW to Write End
Address Set-Up to Write End
Address Hold from Write End
Address Set-Up to Write Start
WE Pulse Width
Data Set-Up to Write End
Data Hold from Write End
WE HIGH to Low Z
WE LOW to High Z
[9]
are tested with C
[10, 11]
PREVIOUS DATA VALID
Description
L
= 5 pF as in part (a) of Test Loads and Waveforms. Transition is measured 500 mV from steady state voltage.
[7]
[7, 8]
[7]
[7, 8]
Over the Operating Range
IL
.
t
OHA
HZ
is less than t
t
AA
7C168A-15
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
15
15
12
12
12
10
5
5
0
0
0
0
0
0
7
5
LZ
for all devices. Transition is measured 500 mV from steady state voltage with specified loading in part
15
15
15
8
[2,6]
t
RC
7C168A-20
20
20
15
15
15
10
5
5
0
0
0
0
0
0
7
5
20
20
20
8
7C168A-25
25
20
20
20
15
10
5
5
0
0
0
0
0
0
7
5
25
25
10
20
DATA VALID
7C168A-35
35
25
25
25
20
15
5
5
0
0
0
0
0
0
5
5
35
35
15
20
7C168A-45
45
40
30
30
20
15
10
CY7C168A
5
5
0
0
0
0
0
0
5
C168A-5
Page 4 of 10
45
45
15
25
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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