AT89C5122D-RDRIM Atmel, AT89C5122D-RDRIM Datasheet - Page 42
![IC MCU 80C51 W/SMART CARD 64VQFP](/photos/6/81/68127/313-64-vqfp_sml.jpg)
AT89C5122D-RDRIM
Manufacturer Part Number
AT89C5122D-RDRIM
Description
IC MCU 80C51 W/SMART CARD 64VQFP
Manufacturer
Atmel
Series
89Cr
Specifications of AT89C5122D-RDRIM
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
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C5122DRDRIMTR
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Figure 19. Clock Tree Diagram
CPU and Peripheral Clocks
42
XTAL2
XTAL1
AT83R5122, AT8xC5122/23
PCON.1
PD
CK_XTAL1
Two clocks sources are available for CPU and peripherals:
These clock sources are configured by the PR1 prescaler to generate the CPU core
CK_CPU and the peripheral clocks:
96 MHz
PLLCON.1
PLLEN
PLL
–
–
–
–
–
–
–
–
on-chip oscillator
a derivative of the PLL clock.
CK_IDLE for alternate card and peripherals registers access
CK_T0 for Timer 0
CK_T1 for Timer 1
CK_SI for the UART
CK_WD for the Watchdog Timer
CK_SPI for SPI
CK_XTAL1
CK_PLL
CK_PLL
CKSEL.0
CKS
1/2
0
1
DCCKPS[3:0]
CKRL[3:0]
PLLCON.2
PR1
SCICLK.7
XTSCS
EXT48
PR4
CK_PLL
CK_XTAL1
CK_XTAL1
1/2
CKCON0.X or
CKCON0.0
PeriphX2
CKCON1.0
0
1
X2
0
1
0
1
1
0
CKCON0.0
SCICLK[5:0]
PERIPH = T0, T1, SI, WD or SPI
CK_IDLE
PR2
X2
1
0
SCSR[3:2]
PCON.0
PR3
IDL
SCICLK[5:0]
<48
=48
CK_PERIPH
CK_DCDC
CK_IDLE
CK_IDLE
CK_CPU
CK_USB
CK_ISO
4202F–SCR–07/2008
Peripherals
Converter
Alternate
CK_T0
CK_T1
CK_SI
CK_WD
CK_SPI
DC/DC
SCIB
CPU
Card
USB
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