AT89LS8252-12JC Atmel, AT89LS8252-12JC Datasheet - Page 22

• Manufacturer Part Number: AT89LS8252-12JC
• Description: IC MICRO CTRL 12MHZ 44PLCC
• Manufacturer: Atmel
• Series: 89LSr

Specifications of AT89LS8252-12JC

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: AT89LS825212JC

Figure 14. Programming the Flash/EEPROM Memory
Figure 16. Verifying the Flash/EEPROM Memory
22
PROGRAMMING
MODES TABLE
PROGRAMMING
3-12 MHz
MODES TABLE
SEE FLASH
3-12 MHz
SEE FLASH
0000H/27FFH
0000H/27FFH
ADDR.
ADDR.
AT89LS8252
A8 - A13
A8 - A13
A0 - A7
A0 - A7
P1
P2.0 - P2.5
P2.6
P2.7
P3.6
P3.7
XTAL2
XTAL1
GND
P1
P2.0 - P2.5
P2.6
P2.7
P3.6
P3.7
XTAL2
XTAL1
GND
AT89LS8252
AT89LS8252
PSEN
PSEN
RST
RST
ALE
V
V
ALE
EA
EA
CC
P0
CC
P0
+5V
PGM DATA
(USE 10K
PULLUPS)
+5V
PGM
DATA
PROG
V
V
V
V
V
PP
PP
IH
IH
IH
Figure 15. Flash/EEPROM Serial Downloading
0850C–MICRO–3/06