CY7C1512-15SC CYPRESS [Cypress Semiconductor], CY7C1512-15SC Datasheet - Page 3

• Manufacturer Part Number: CY7C1512-15SC
• Description: 64K x 8 Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Capacitance
AC Test Loads and Waveforms
Switching Characteristics
OUTPUT
C
C
READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
Equivalent to:
Parameter
RC
AA
OHA
ACE
DOE
LZOE
HZOE
LZCE
HZCE
PU
PD
WC
SCE
AW
HA
SA
PWE
SD
HD
LZWE
HZWE
5.
6.
7.
8.
9.
IN
OUT
INCLUDING
JIG AND
SCOPE
Tested initially and after any design or process changes that may affect these parameters.
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
and the transition of any of these signals can terminate the write. The input data set-up and hold timing should be referenced to the leading edge of the signal that terminates
the write.
OL
HZOE
5V
Parameter
/I
OH
OUTPUT
, t
HZCE
and 30-pF load capacitance.
30 pF
, and t
Read Cycle Time
Address to Data Valid
Data Hold from Address Change
CE
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE
CE
CE
CE
Write Cycle Time
CE
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
[5]
[9]
(a)
1
1
1
1
1
1
HZWE
R1 480
TH VENIN EQUIVALENT
LOW to Data Valid, CE
LOW to Low Z, CE
HIGH to High Z, CE
LOW to Power-Up, CE
HIGH to Power-Down, CE
LOW to Write End, CE
are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured 500 mV from steady-state voltage.
167
Input Capacitance
Output Capacitance
255
R2
Description
[8]
[7, 8]
[7, 8]
[3, 6]
OUTPUT
Description
1.73V
2
INCLUDING
JIG AND
SCOPE
Over the Operating Range
2
PRELIMINARY
HIGH to Low Z
5V
LOW to High Z
2
2
2
HZCE
HIGH to Write End
HIGH to Power-Up
HIGH to Data Valid
2
5 pF
LOW to Power-Down
is less than t
(b)
R1 480
[8]
T
V
[7, 8]
LZCE
A
CC
1
= 25 C, f = 1 MHz,
, t
LOW, CE
= 5.0V
1512-3
HZOE
3
Test Conditions
is less than t
255
R2
2
HIGH, and WE LOW. CE
Min.
LZOE
GND
7C1512-15
3.0V
15
15
12
12
12
3
0
3
0
0
0
8
0
3
, and t
<3ns
Max.
HZWE
15
15
15
7
7
7
7
1
is less than t
and WE must be LOW and CE
Min.
10%
7C1512-20
20
20
15
15
15
10
3
0
3
0
0
0
0
3
90%
ALL INPUT PULSES
LZWE
Max.
Max.
for any given device.
20
20
20
8
8
8
8
9
9
Min.
7C1512-25
25
25
20
20
20
15
5
0
5
0
0
0
0
5
CY7C1512
2
HIGH to initiate a write,
Max.
25
25
10
10
10
25
10
Unit
90%
pF
pF
10%
1512-4
< 3 ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns