PSD934210JIT STMICROELECTRONICS [STMicroelectronics], PSD934210JIT Datasheet - Page 63

• Manufacturer Part Number: PSD934210JIT
• Description: Flash PSD, 3.3V Supply, for 8-bit MCUs 2 Mbit 256 Kbit Dual Flash Memories and 64 Kbit SRAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

AC/DC PARAMETERS
These tables describe the AD and DC parameters
of the PSD:
Figure 32. PLD I
DC Electrical Specification
AC Timing Specification
PLD Timing
– Combinatorial Timing
– Synchronous Clock Mode
– Asynchronous Clock Mode
– Input Macrocell Timing
MCU Timing
– Read Timing
– Write Timing
– Peripheral Mode Timing
CC
/Frequency Consumption
60
50
40
30
20
10
0
0
V
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
CC
= 3V
5
10
The following are issues concerning the parame-
ters presented:
– Power-down and Reset Timing
In the DC specification the supply current is
given for different modes of operation. Before
calculating the total power consumption,
determine the percentage of time that the PSD
is in each mode. Also, the supply power is
considerably different if the Turbo bit is 0.
The AC power component gives the PLD, Flash
memory, and SRAM mA/MHz specification.
Figure 32 shows the PLD mA/MHz as a function
of the number of Product Terms (PT) used.
In the PLD timing parameters, add the required
delay when Turbo bit is 0.
15
20
PT 100%
PT 25%
25
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