UPSD3234AV-24U1T STMicroelectronics, UPSD3234AV-24U1T Datasheet - Page 150
UPSD3234AV-24U1T
Manufacturer Part Number
UPSD3234AV-24U1T
Description
Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
Manufacturer
STMicroelectronics
Datasheet
1.UPSD3234AV-24U1T.pdf
(170 pages)
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uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV
Table 123. External Data Memory AC Characteristics (with the 5V MCU Module)
Note: 1. Conditions (in addition to those in
150/170
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
D
RLRH
WLWH
LLAX2
RHDX
RHDX
RHDZ
LLDV
AVDV
LLWL
AVWL
WHLH
QVWX
QVWH
WHQX
RLAZ
a
C
L
t
for other outputs is 80pF
RD pulse width
WR pulse width
Address hold after ALE
RD to valid data in
Data hold after RD
Data float after RD
ALE to valid data in
Address to valid data in
ALE to WR or RD
Address valid to WR or RD
WR or RD High to ALE High
Data valid to WR transition
Data set-up before WR
Data hold after WR
Address float after RD
a
S
Parameter
h
e
e
(1)
Table 112., page
t
4
U
140, V
.
c
Min
120
120
125
40MHz Oscillator
10
60
70
10
CC
0
5
5
= 4.5 to 5.5V): V
o
m
Max
150
150
75
38
90
40
0
SS
= 0V; C
L
6t
6t
3t
4t
7t
for Port 0, ALE and PSEN output is 100pF;
t
t
t
t
CLCL
CLCL
CLCL
CLCL
1/t
CLCL
CLCL
CLCL
CLCL
CLCL
Variable Oscillator
Min
CLCL
0
– 15
– 15
– 20
– 20
– 30
– 30
– 15
– 30
– 50
= 24 to 40MHz
5t
2t
8t
9t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
Max
0
+ 15
+ 15
– 50
– 12
– 50
– 75
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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