PSD835G2-90UI STMicroelectronics, PSD835G2-90UI Datasheet - Page 84

• Manufacturer Part Number: PSD835G2-90UI
• Description: IC FLASH 4MBIT 90NS 80TQFP
• Manufacturer: STMicroelectronics

Specifications of PSD835G2-90UI

• 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: 497-2016

I/O ports
Figure 27. Port A, B and C structure
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The two ports can be configured to perform one or more of the following functions:
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●
●
●
●
MCELLA7-MCELLA0 (PORT A)
MCELLB7-MCELLB0 (PORT B)
EXT.CS (PORT C)
ENABLE PRODUCT TERM ( .OE )
WR
WR
MCU I/O mode
CPLD Output – macrocells McellA7-McellA0 can be connected to port A, McellB7-
McellB0 can be connected to port B, External Chip Select ECS7-ECS0 can be
connected to port C.
CPLD Input – Via the input macrocells (IMC).
Address In – Additional high address inputs using the input macrocells (IMC).
Open Drain/Slew Rate – pins PC7-PC0 can be configured to fast slew rate, pins PA7-
PA0 and PB7-PB0 can be configured to Open Drain mode.
CPLD-INPUT
DATA OUT
READ MUX
DIR REG.
D
D
REG.
P
D
B
Q
Q
DATA OUT
DATA IN
OUTPUT
SELECT
OUTPUT
MUX
ENABLE OUT
MACROCELL
INPUT
PSD835G2
PORT PIN
AI02887b