cym9271b Cypress Semiconductor Corporation., cym9271b Datasheet - Page 7

• Manufacturer Part Number: cym9271b
• Description: Sram Module
• Manufacturer: Cypress Semiconductor Corporation.

AC Test Loads and Waveforms
Switching Characteristics
OUTPUT
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Notes:
CYC
CH
CL
AS
AH
CDV
DOH
WES
WEH
DS
DH
CSS
CSH
EOZ
EOV
2.
3.
4.
Parameter
[4]
Resistor values for V
Unless otherwise noted, 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
EOZ
is 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.
Clock Cycle Time
Clock HIGH
Clock LOW
Address Set-Up Before CLK Rise
Address Hold After CLK Rise
Data Output Valid After CLK Rise
Data Output Hold After CLK Rise
WH, WL Set-Up Before CLK Rise
WH, WL Hold After CLK Rise
Data Input Set-Up Before CLK Rise
Data Input Hold After CLK Rise
Chip Select Set-Up
Chip Select Hold After CLK Rise
OE HIGH to Output High Z
OE LOW to Output Valid
(a)
CCQ
OL
=3.3V are R1=317
V
L
/I
OH
= 1.5V
Description
and load capacitance. Shown in (a) and (b) of AC test loads. All measurements are at room temperature.
R
L
= 50
Over the Operating Range
[3]
and R2=351 .
OUTPUT
V
INCLUDING
CCQ
JIGAND
SCOPE
5 pF
Min.
0.5
3.1
0.5
3.3
0.5
3.1
0.5
12
CYM9270
4
4
3
3
7
(b)
R1
7
Max.
10.3
[2]
7
R2
Min.
CYM9271B
0.5
3.1
0.5
3.3
3.1
0.5
12
4
4
3
3
7
GND
3.3V
Max.
10.3
7
3 ns
10%
Min.
CYM9272A
0.5
3.1
0.5
3.3
0.5
3.1
0.5
12
4
4
3
3
7
ALL INPUT PULSES
90%
Max.
10.3
7
Min.
0.5
3.1
0.5
3.3
0.5
3.1
0.5
12
CYM9273
4
4
3
3
7
CYM9271B
CYM9272A
Max.
90%
CYM9273
10.3
7
10%
3 ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns