AT89LP52 Atmel Corporation, AT89LP52 Datasheet - Page 115

• 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

Table of Contents (Continued)
3709D–MICRO–12/11
15 Programmable Watchdog Timer ........................................................... 73
16 Instruction Set Summary ...................................................................... 75
17 Programming the Flash Memory .......................................................... 79
18 Electrical Characteristics ...................................................................... 92
19 Ordering Information ........................................................................... 107
20 Packaging Information ........................................................................ 108
21 Revision History ................................................................................... 112
Table of Contents....................................................................................... i
15.1
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
18.1
18.2
18.3
18.4
18.5
18.6
18.7
18.8
19.1
20.1
20.2
20.3
20.4
Software Reset ................................................................................................73
Physical Interface ............................................................................................79
Memory Organization ......................................................................................81
Command Format ............................................................................................82
Status Register ................................................................................................85
DATA Polling ...................................................................................................85
Flash Security ..................................................................................................85
User Configuration Fuses ................................................................................86
User Signature .................................................................................................87
Programming Interface Timing ........................................................................87
Absolute Maximum Ratings* ...........................................................................92
DC Characteristics ...........................................................................................92
Typical Characteristics ....................................................................................93
Clock Characteristics .....................................................................................100
Reset Characteristics ....................................................................................101
External Memory Characteristics ...................................................................102
Serial Port Timing: Shift Register Mode ........................................................104
Test Conditions ..............................................................................................104
Green Package Option (Pb/Halide-free) ........................................................107
44A – TQFP ...................................................................................................108
40P6 – PDIP ..................................................................................................109
44J – PLCC ...................................................................................................110
44M1 – VQFN/MLF .......................................................................................111
AT89LP51/52
iii