PSD4235G2V-12UI STMicroelectronics, PSD4235G2V-12UI Datasheet - Page 89
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PSD4235G2V-12UI
Manufacturer Part Number
PSD4235G2V-12UI
Description
IC FLASH 4MBIT 120NS 80TQFP
Manufacturer
STMicroelectronics
Datasheet
1.PSD4235G2-70U.pdf
(129 pages)
Specifications of PSD4235G2V-12UI
Format - Memory
FLASH
Memory Type
FLASH
Memory Size
4M (512K x 8)
Speed
120ns
Interface
Parallel
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TQFP, 80-VQFP
Number Of Macrocells
24
Maximum Operating Frequency
25.6 MHz
Delay Time
90 ns
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1970
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PSD4235G2V-12UI
Manufacturer:
STMicroelectronics
Quantity:
10 000
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PSD4235G2
20.20
20.21
Table 47.
Enable Out
The Enable Out register can be read by the MCU. It contains the output enable values for a
given port. A '1' indicates the driver is in output mode. A '0' indicates the driver is in tri-state
and the pin is in input mode.
Ports A, B and C - functionality and structure
Ports A, B and C have similar functionality and structure, as shown in
can be configured to perform one or more of the following functions:
●
●
●
●
●
Mask macrocell
Input macrocell
Enable Out
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 or Port F.
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 can be configured to Open Drain mode.
Register Name
Port Data registers
A, B
A, B, C
A, B, C, F
Port
WRITE/READ - prevents loading into a given
Macrocell
READ - outputs of the input macrocells
READ - the output enable control of the port driver
MCU Access
Figure
28. The ports
I/O ports
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