PSD4235G2-90UI STMicroelectronics, PSD4235G2-90UI Datasheet - Page 112

• 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

DC and AC parameters
Table 61.
1. Reset (RESET) has hysteresis. V
2. CSI deselected or internal Power-down mode is active.
3. PLD is in non-Turbo mode, and none of the inputs are switching.
4. Please see
Figure 38. Input to output Disable/Enable
Table 62.
112/129
I
(Note
I
t
t
t
t
Symbol
Symbol
CC
CC
PD
EA
ER
ARP
(DC)
(AC)
5
)
Operating
Supply
Current
PLD AC Adder
Flash memory AC Adder
SRAM AC Adder
CPLD input
Pin/Feedback to CPLD
Combinatorial output
CPLD input to CPLD
output Enable
CPLD input to CPLD
output Disable
CPLD register Clear or
Preset Delay
Figure 34
DC characteristics (continued)
CPLD Combinatorial timing
ENABLE/DISABLE
Parameter
Parameter
for the PLD current calculation.
INPUT TO
OUTPUT
INPUT
PLD Only
Flash memory
SRAM
IL1
is valid at or below 0.2V
Conditions
(in addition to those in
During Flash memory
Read Only, f = 0 MHz
PLD_TURBO = Off,
PLD_TURBO = On,
WRITE/Erase Only
f = 0 MHz (Note
Test Condition
tER
Table
f = 0 MHz
f = 0 MHz
Min
CC
-70
56)
–0.1. V
Max
20
21
21
21
5
)
IH1
is valid at or above 0.8V
Min
tEA
-90
Min.
Max
25
26
26
26
AI02863
Typ.
Aloc
400
Fast
2.5
1.5
15
+ 2
PT
0
0
0
CC
.
Turbo
+ 12
+ 12
+ 12
+ 12
Off
Max.
700
3.5
3.0
30
(4)
0
0
PSD4235G2
Slew
rate
– 2
– 2
– 2
– 2
(1)
µA/PT
µA/PT
MHz
MHz
Unit
mA/
mA/
mA
mA
mA
Unit
ns
ns
ns
ns