PSD4235G2-90UI STMicroelectronics, PSD4235G2-90UI Datasheet - Page 109

• Manufacturer Part Number: PSD4235G2-90UI
• Description: IC FLASH 4MBIT 90NS 80TQFP
• Manufacturer: STMicroelectronics

Specifications of PSD4235G2-90UI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1969

PSD4235G2
Table 56.
Table 57.
1. Example: t
Table 58.
Symbol
V
T
CC
A
Letter
W
AVLX
G
Q
M
A
C
D
E
N
P
R
S
B
L
T
I
Operating conditions
AC signal letters for PLD timings
AC signal behavior symbols for PLD timings
Supply voltage
Ambient operating temperature (industrial)
Ambient operating temperature (commercial)
= time from Address Valid to ALE Invalid.
Letter
H
V
X
Z
L
t
Address input
CEout output
Input data
E input
Internal WDOG_ON signal
Interrupt input
ALE input
Reset input or output
Port signal output
Output data
WR, UDS, LDS, DS, IORD, PSEN inputs
Chip Select input
R/W input
Internal PDN Signal
V
Output macrocell
STBY
output
Parameter
(1)
Time
Logic level low or ALE
Logic level high
Valid
No Longer a Valid Logic level
Float
Description
Min.
–40
4.5
0
Description
DC and AC parameters
Max.
5.5
85
70
Unit
°C
°C
V
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