PSD813F1A-90J STMicroelectronics, PSD813F1A-90J Datasheet - Page 75

• Manufacturer Part Number: PSD813F1A-90J
• Description: IC FLASH 1MBIT 90NS 52PLCC
• Manufacturer: STMicroelectronics

Specifications of PSD813F1A-90J

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 1M (128K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1975-5

Table 37. Example of PSD Typical Power Calculation at V
Highest Composite PLD input frequency
MCU ALE frequency (Freq ALE)
Operational Modes
Number of product terms used
I
This is the operating power with no EEPROM WRITE or Flash memory Erase cycles. Calculation is based on I
0mA.
CC
total
(Freq PLD)
% Flash memory Access
% SRAM access
% I/O access
% Normal
% Power-down Mode
(from fitter report)
% of total product terms
Turbo Mode
Calculation (using typical values)
= 8MHz
= 4MHz
= 80%
= 15%
= 5% (no additional power above base)
= 10%
= 90%
= 45 PT
= 45/182 = 24.7%
= Off
= Ipwrdown x %pwrdown + %normal x (I
= Ipwrdown x %pwrdown + % normal x (%flash x 2.5mA/MHz x Freq ALE
= 50µA x 0.90 + 0.1 x (0.8 x 2.5mA/MHz x 4MHz
= 45µA + 0.1 x (8 + 0.9 + 24)
= 45µA + 0.1 x 32.9
= 45µA + 3.29mA
= 3.34mA
Conditions
+ %SRAM x 1.5mA/MHz x Freq ALE
+ % PLD x (from graph using Freq PLD))
+ 0.15 x 1.5mA/MHz x 4MHz
+ 24mA)
CC
= 5.0V (Turbo Mode Off)
CC
(ac) + I
CC
(dc))
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