PSD4235G2V-12UI STMicroelectronics, PSD4235G2V-12UI Datasheet - Page 87
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
(The slew rate is a measurement of the rise and fall times of an output. A higher slew rate
means a faster output response and may create more electrical noise. A pin operates in a
high slew rate when the corresponding bit in the Drive register is set to '1.' The default rate is
slow slew.)
Table 46
can be configured as Open Drain outputs and which pins the slew rate can be set for.
Table 43.
Table 44.
Table 45.
Table 46.
1. NA = Not Applicable.
Port A
Port B
Port C
Port D
Port E
Port F
Port G
register
Drive
Bit 7
0
Direction register bit
shows the Drive register for Ports A, B, C, D, E, F and G. It summarizes which pins
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Port Pin Direction Control, output Enable P.T. not defined
Direction register bit
Port Pin Direction Control, output Enable P.T. defined
Port direction assignment example
Drive register pin assignment
Bit 7
Slew
Slew
Rate
Rate
NA
0
0
1
1
Bit 6
0
0
1
Open
Open
Open
Open
Drain
Drain
Drain
Drain
Bit 6
Slew
Rate
Slew
Rate
NA
Bit 5
0
Open
Open
Open
Open
Drain
Drain
Drain
Drain
Bit 5
Slew
Rate
Slew
Rate
NA
Output Enable P.T.
Bit 4
0
Open
Open
Open
Open
Drain
Drain
Drain
Drain
Bit 4
Slew
Rate
Slew
Rate
NA
(1)
0
1
0
1
Bit 3
0
Open
Open
Open
Open
Open
Drain
Drain
Drain
Drain
Drain
Bit 3
Slew
Rate
Slew
Rate
Bit 2
Port pin mode
1
Open
Open
Open
Open
Open
Drain
Drain
Drain
Drain
Drain
Bit 2
Slew
Rate
Slew
Rate
Output
Input
Port pin mode
Bit 1
Output
Output
Output
1
Open
Open
Open
Open
Open
Drain
Drain
Drain
Drain
Drain
Input
Bit 1
Slew
Rate
Slew
Rate
I/O ports
Bit 0
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Bit 0
Slew
Rate
Slew
Rate
1
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