AT89C5122D-RDRUM Atmel, AT89C5122D-RDRUM Datasheet - Page 30

• Manufacturer Part Number: AT89C5122D-RDRUM
• Description: IC 8051 MCU 32K CRAM USB 64-VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-RDRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: SmartCard, SPI, UART/USART, USB
• Peripherals: LED, POR, WDT
• Number Of I /o: 46
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: AT89C5122D-RDRUMTR

AT83C5123 Version
Figure 14. AT83C5123’s Device
30
PROGRAM MEMORY
(Read only)
DATA MEMORY
(Read / Write)
AT83R5122, AT8xC5122/23
RESET@
<0000>
OPTIONAL
The AT83C5123 device is a low pin count version of the AT8xC5122.
The ROM version implements :
- 30 KB of ROM mapped from 0000 to 77FF in which is embedded the user code. The
ROM device is only factory programmable.
- 512 bytes of E2PROM can be optionally implemented to store permanent data
01FF
01FF
0000
0000
7FFF
INTERNAL
512 Bytes
512 bytes
E2PROM
INTERNAL
30K ROM
On-chip
XRAM
On-Chip 256 bytes RAM
FF
80
7F
00
Indirect
Addressing
128 Bytes
Upper
RAM
128 Bytes
Lower
RAM
FF
80
Direct
Addressing
Space
SFR
4202F–SCR–07/2008