UPSD3254 STMICROELECTRONICS [STMicroelectronics], UPSD3254 Datasheet - Page 142

• Manufacturer Part Number: UPSD3254
• Description: Flash Programmable System Devices with 8032 Microcontroller Core
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
AC/DC PARAMETERS
These tables describe the AD and DC parameters
of the uPSD325X devices:
Figure 72. PLD I
Figure 73. PLD I
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PLD Timing
– Combinatorial Timing
– Synchronous Clock Mode
– Asynchronous Clock Mode
– Input Macrocell Timing
MCU Module Timing
– READ Timing
– WRITE Timing
DC Electrical Specification
AC Timing Specification
CC
CC
/Frequency Consumption (5V range)
/Frequency Consumption (3V range)
110
100
90
80
70
60
50
40
30
20
10
60
50
40
30
20
10
0
0
0
0
V
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
V
CC
CC
= 3V
= 5V
5
5
10
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.
The AC power component gives the PLD, Flash
memory, and SRAM mA/MHz specification.
Figure 72 and Figure 73 show 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
15
20
20
PT 100%
PT 25%
PT 100%
PT 25%
25
25
AI02894
AI03100