cym1481ps-85c Cypress Semiconductor Corporation., cym1481ps-85c Datasheet - Page 3

• Manufacturer Part Number: cym1481ps-85c
• Description: 1024k Sram Module
• Manufacturer: Cypress Semiconductor Corporation.

:
AC Test Loads and Waveforms
Switching Characteristics
OUTPUT
READ CYCLE
t
t
t
t
t
t
t
t
t
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
Notes:
Equivalent to:
RC
AA
OHA
AMS
DOE
LZOE
HZOE
LZMS
HZMS
WC
SMS
AW
HA
SA
PWE
SD
HD
HZWE
LZWE
2.
3.
4.
5.
Parameter
INCLUDING
JIG AND
SCOPE
Test conditions assume signal transition time of 10 s or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, output loading of 1 TTL load, and
100-pF load capacitance.
t
At any given temperature and voltage condition, t
The internal write time of the memory is defined by the overlap of MS LOW and WE LOW. Both signals 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.
HZOE
5V
OUTPUT
100 pF
, t
HZMS
, and t
Read Cycle Time
Address to Data Valid
Data Hold from Address Change
MS LOW to Data Valid
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
MS LOW to Low Z
MS HIGH to High Z
Write Cycle Time
MS 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 LOW to High Z
WE HIGH to Low Z
[5]
(a)
R1 2530
THÉ VENIN EQUIVALENT
HZWE
1340
are specified with C
Description
1471-5
R2
2830
Over the Operating Range
[4]
OUTPUT
[3]
[3]
[3, 4]
2.64V
INCLUDING
JIG AND
SCOPE
L
= 5 pF as in part (b) of AC Test Loads and Waveforms. Transition is measured 500 mV from steady-state voltage.
5V
HZMS
5 pF
is less than t
(b)
R1 2530
Min
70
70
65
65
65
30
5
5
5
5
0
0
5
LZMS
1471-70
1481-70
[2]
1471-3
for any given device. These parameters are guaranteed and not 100% tested.
3
Max
R2
2830
70
70
40
30
30
30
Min.
85
10
10
85
75
75
65
35
GND
5
7
5
5
5
1471–85
1481–85
3.0V
< 10 ns
Max.
85
85
45
30
30
30
Min.
100
100
10
10
90
90
75
40
1471–100
1481–100
5
7
5
5
5
10%
90%
ALL INPUT PULSES
Max.
100
100
50
35
35
35
Min.
120
120
100
100
10
10
85
45
1471–120
1481–120
5
7
5
5
5
CYM1471
CYM1481
Max.
120
120
60
45
45
40
90%
10%
1471-4
< 10 ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns