we128k32-xxx White Electronic Designs Corporation, we128k32-xxx Datasheet - Page 6

• Manufacturer Part Number: we128k32-xxx
• Description: 128kx32 Eeprom Module, 5962-94585
• Manufacturer: White Electronic Designs Corporation

READ
The WE128K32-XXX stores data at the memory location
determined by the address pins. When CS# and OE# are
low and WE# is high, this data is present on the outputs.
When CS# and OE# are high, the outputs are in a high
impedance state. This two line control prevents bus
contention.
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
March 2006
Rev. 10
Read Cycle Parameter
Read Cycle Time
Address Access Time
Chip Select Access Time
Output Hold from Add. Change, OE# or CS#
Output Enable to Output Valid
Chip Select or OE# to High Z Output
Notes:
OE# may be delayed up to t
on t
OE
or by t
ACC
- t
OE
White Electronic Designs
after an address change without impact on t
ACS
ADDRESS
- t
OUTPUT
OE
after the falling edge of CS# without impact
OE#
CS#
Symbol
t
t
t
ACC
t
t
t
ACS
RC
OH
OE
DF
FIGURE 7 – READ WAVEFORMS
AC READ CHARACTERISTICS
V
CC
ACC
ADDRESS VALID
Min
= 5.0V, GND = 0V, -55°C ≤ T
120
HIGH Z
0
0
.
-120
t
t
ACC
Max
ACS
120
120
t
50
60
RC
t
OE
Min
140
0
0
6
-140
Max
140
140
55
70
OUTPUT
A
VALID
≤ +125°C
Min
150
0
0
White Electronic Designs Corporation • [phone] • www.wedc.com
-150
t
OH
Max
150
150
55
70
Min
200
0
0
-200
t
DF
Max
200
200
55
70
WE128K32-XXX
Min
250
0
0
-250
Max
250
250
85
70
Min
300
0
0
-300
Max
300
300
85
70
Unit
ns
ns
ns
ns
ns
ns