PSD4235G2V-12UI STMicroelectronics, PSD4235G2V-12UI Datasheet - Page 107
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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
Table 54.
1. This is the operating power with no Flash memory Program or Erase cycles in progress. Calculation is based on
MCU ALE frequency (Freq ALE)
I
CC
I
OUT
total
=0 mA.
(Freq PLD)
% Flash memory Access
% SRAM access
% I/O access
% Normal
% Power-down mode
(from fitter report)
% of total product terms
Turbo Mode
Example of PSD typical power calculation at V
Highest Composite PLD input frequency
Calculation (using typical values)
= 45 PT
= 45/193 = 23.3%
= 8 MHz
= 4 MHz
= 80%
= 15%
= 5% (no additional power above base)
= 10%
= 90%
= ON
= Ipwrdown x %pwrdown + %normal x (I
= Ipwrdown x %pwrdown + % normal x (%flash x 2.5 mA/MHz x Freq ALE
= 50µA x 0.90 + 0.1 x (0.8 x 2.5 mA/MHz x 4 MHz
= 45µA + 0.1 x (8 + 0.9 + 16 + 18 mA)
= 45µA + 0.1 x 42.9
= 45µA + 4.29 mA
= 4.34 mA
Number of product terms used
Operational Modes
Conditions
+ %SRAM x 1.5 mA/MHz x Freq ALE
+ % PLD x 2 mA/MHz x Freq PLD
+ #PT x 400µA/PT)
+ 0.15 x 1.5 mA/MHz x 4 MHz
+ 2 mA/MHz x 8 MHz
+ 45 x 0.4 mA/PT)
CC
= 5.0V (with Turbo mode on)
CC
(ac) + I
DC and AC parameters
CC
(dc))
(1)
107/129
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