AT89C51RE2-SLSUM Atmel, AT89C51RE2-SLSUM Datasheet - Page 11

• Manufacturer Part Number: AT89C51RE2-SLSUM
• Description: MCU 8BIT FLASH 2.7-5.5V 44-PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51RE2-SLSUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Package: 44PLCC
• Device Core: 8051
• Family Name: 89C
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 34
• Interface Type: SPI/TWI/UART
• Number Of Timers: 3
• Processor Series: AT89x
• Core: 8051
• Data Ram Size: 8 KB
• Maximum Clock Frequency: 40 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89OCD-01
• Minimum Operating Temperature: - 40 C
• Cpu Family: 89C
• Device Core Size: 8b
• Frequency (max): 40MHz
• Total Internal Ram Size: 8KB
• # I/os (max): 34
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PLCC
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-11 - KIT STARTER FOR AT89C51RX2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 11. SPI Controller SFRs
Table 12. Two-Wire Interface Controller SFRs
Table 13. Keyboard Interface SFRs
7663E–8051–10/08
SSCON
SSCS
SSDAT
SSADR
SPCON
SPSCR
SPDAT
KBLS
KBE
KBF
Mnemonic
Mnemonic
Mnemonic
Add
Add
Add
C3h
C4h
C5h
93h
94h
95h
96h
9Ch
9Dh
9Eh
Name
Synchronous Serial control
Synchronous Serial Status
Synchronous Serial Data
Synchronous Serial Address
Name
SPI Control
SPI Status
SPI Data
Name
Keyboard Level Selector
Keyboard Input Enable
Keyboard Flag Register
SSCR2
KBLS7
SSC4
SSD7
SSA7
SPR2
SPD7
KBE7
KBF7
SPIF
7
7
7
KBLS6
SPEN
SSPE
SSD6
SPD6
SSC3
SSA6
KBE6
KBF6
6
6
6
KBLS5
SSDIS
SSSTA
SPD5
KBE5
SSC2
SSD5
SSA5
KBF5
OVR
5
5
5
KBLS4
SSSTO
MSTR
MODF
SPD4
KBE4
KBF4
SSC1
SSD4
SSA4
4
4
4
KBLS3
CPOL
SPTE
SPD3
KBE3
KBF3
SSC0
SSD3
SSA3
SSI
3
3
3
UARTM
KBLS2
CPHA
SPD2
KBE2
SSAA
KBF2
SSD2
SSA2
AT89C51RE2
2
2
2
0
SPTEIE
SSCR1
KBLS1
SPR1
SPD1
SSD1
SSA1
KBE1
KBF1
1
1
1
0
MODFIE
SSCR0
KBLS0
SSGC
SPR0
SPD0
SSD0
KBE0
KBF0
0
0
0
0
11