AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 16

• Manufacturer Part Number: AT89C5122D-PSTUM
• Description: IC 8051 MCU FLASH 32K 64QFN
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-PSTUM

• 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-QFN
• For Use With: AT89STK-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: -

USB Keyboard with Smart Card Reader Using AT83R5122, AT8xC5122/AT89C5122DS
16
Notes :
1 - Pin configuration depends on product versions
AT83R5122, AT8xC5122/23
Keyboard Matrix
USB
VBUS
GND
D+
D-
GND
VCC
C3
R4
GND
VCC
R1
10mA Max
R2
R3
GND
C2
C4
C0
C1
C2
C3
C4
C5
C6
C7
C9
GND
P3[0-1,3-4]
P2[0-7]
P0[0-7]
VREF
D+
D-
KB0
KB1
KB2
KB3
KB4
KB5
KB6
KB7
EA/VCC (1)
PLLF
DVCC
AVSS
VCC
VCC
GND
VSS
GND
C8
XTAL1
AVCC
VCC
Q1
CPRES
CRST1
CCLK1
XTAL2
CVCC
CVSS
LEDx
CRST
CCLK
CIO1
RST
GND
CC4
CC8
CIO
LI
C1
180Ohms
GND
C6
C10
L1
GND
C7
R5
Capacitor
GND
VCC
Optional
VCC
VCC
15pF
Alternate Card
C1
C2
C3
C7
C5
C1
C5
C2
C3
C4
C7
C8
S1
Smart Card
VCC
RST
CLK
I/O
GND
4202F–SCR–07/2008
GND
RST
CLK
C4
I/O
C8
S1
VCC
GND
S2