PSD4235G2V-12UI STMicroelectronics, PSD4235G2V-12UI Datasheet - Page 81
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
20.2
Figure 26. General I/O port architecture
ADDRESS
ALE
Port operating modes
The I/O Ports have several modes of operation. Some modes can be defined using PSDsoft
Express, some by the MCU writing to the registers in CSIOP space, and some by both. The
modes that can only be defined using PSDsoft Express must be programmed into the
device and cannot be changed unless the device is reprogrammed. The modes that can be
changed by the MCU can be done so dynamically at run-time. The PLD I/O, Data Port,
Address input, Peripheral I/O and MCU Reset modes are the only modes that must be
defined before programming the device. All other modes can be changed by the MCU at
run-time. See Application Note AN1171 for more detail.
Table 39
where the different modes are configured. Each of the port operating modes are described
in the following sections.
MACROCELL OUTPUTS
EXT CS
WR
ENABLE PRODUCT TERM ( .OE )
WR
WR
summarizes which modes are available on each port.
CONTROL REG.
CPLD -INPUT
DATA OUT
READ MUX
DIR REG.
D
D
G
D
D
REG.
D
B
P
Q
Q
Q
Q
DATA IN
DATA OUT
ADDRESS
OUTPUT
OUTPUT
SELECT
MUX
ENABLE OUT
Table 40
MACROCELL
INPUT
shows how and
I/O ports
PORT PIN
AI02885
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