AT89LP52 Atmel Corporation, AT89LP52 Datasheet - Page 93

• Manufacturer Part Number: AT89LP52
• Manufacturer: Atmel Corporation

Specifications of AT89LP52

• Flash (kbytes): 8 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 36
• Uart: 1
• Sram (kbytes): 0.25
• Eeprom (bytes): 256
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 3
• Isp: SPI
• Watchdog: Yes

18.3
18.3.1
3709D–MICRO–12/11
2. Minimum V
3. Inputs are TTL-compatible when V
Typical Characteristics
Supply Current (Internal Oscillator)
DD
for Power-down is 2V.
The following charts show typical behavior. These figures are not tested during manufacturing.
All current consumption measurements are performed with all I/O pins configured as quasi-bidi-
rectional (with internal pull-ups). A square wave generator with rail-to-rail output is used as an
external clock source for consumption versus frequency measurements.
Figure 18-1. Active Supply Current vs. Vcc (1.8432 MHz Internal Oscillator)
1.25
1.00
0.75
0.50
0.25
3.0
2.5
2.0
1.5
1.0
2.0
2.0
DD
is 5V ± 10%
2.5
2.5
1.8432 MHz Internal Oscillator
Active Supply Current vs. Vcc
3.0
3.0
Compatibility Mode
Fast Mode
3.5
3.5
Vcc (V)
Vcc (V)
4.0
4.0
4.5
4.5
5.0
5.0
AT89LP51/52
5.5
5.5
85C
-40C
25C
85C
-40C
25C
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