ST52T440F3M6 STMicroelectronics, ST52T440F3M6 Datasheet - Page 75

• Manufacturer Part Number: ST52T440F3M6
• Description: MCU 8-Bit ST52 CISC 8KB EPROM 5V 20-Pin SO
• Manufacturer: STMicroelectronics

Specifications of ST52T440F3M6

• Package: 20SO
• Family Name: ST52
• Maximum Speed: 20 MHz
• Ram Size: 256 Byte
• Program Memory Size: 8 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 13
• On-chip Adc: 6-chx12-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 1

Notes:
1. CPU running with memory access, all I/O pins in input mode with a static value at V
peripherals switched off; clock input (OSCin driven by external square wave).
2. CPU in WAIT mode with all I/O pins in input mode with a static value at V
switched off; clock input (OSCin driven by external square wave).
3. Data based on characterization results, tested in production at V
11.4 Supply Current Characteristics
Supply current is mainly a function of the operating
voltage and frequency. Other factors such as I/O
pin loading and switching rate, oscillator type,
internal code execution pattern and temperature,
also have an impact on the current consumption.
Table 11.5 Supply Current in RUN and WAIT Mode
Figure 11.4 Typical IDD in RUN vs fosc
Symbol
35
30
25
20
15
10
I
5
0
DD
2.0
2M H z
3.0
Supply current in RUN mode
Supply current in WAIT mode
4M H z
V D D[V ]
Parameter
5M H z
4.0
10M H z
5.0
20M H z
1)
2)
6.0
V
T
DD
A
=5V 5%
=25 C
The test condition in RUN mode for all the IDD
measurements are:
OSCin = external square wave, from rail to rail;
OSCout = floating;
All I/O pins tristated pulled to VDD
T
Figure 11.5 Typical IDD in WAIT vs fosc
A
Conditions
=25 C
30
25
20
15
10
5
0
2.0
f
f
f
f
f
f
osc
osc
osc
osc
osc
osc
2M Hz
2.5
f
f
f
f
osc
osc
osc
osc
=5 Mhz,
=2 MHz
=4 MHz
=5 MHz
=2 Mhz
=4 Mhz
DDmax
=10
=20
=10
=20
3.0
4M Hz
ST52T400/T440/E440/T441
and f
3.5
DD
5M H z
6.48
7.95
9.08
15.5
28.3
12.2
23.0
Typ
oscmax
4.4
6.0
6.6
V DD[V ]
(no load), all peripherals
4.0
10M H z
.
4.5
Max
28.92
12.31
23.07
6.48
8.16
9.27
15.6
4.41
6.09
6.89
DD
5.0
3)
20M H z
(no load), all
5.5
Unit
mA
75/94
6.0