AT89LP52-20MU Atmel, AT89LP52-20MU Datasheet - Page 21

• Manufacturer Part Number: AT89LP52-20MU
• Description: IC MCU 8051 8K FLASH SPI 44VQFN
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP52-20MU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-VFQFN Exposed Pad
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: Serial
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

3709B–MICRO–12/10
Figure 3-16. MOVX with One Wait State (WS = 01B)
Figure 3-17. MOVX with Two Wait States (WS = 10B)
Figure 3-18. MOVX with Three Wait States (WS = 11B)
CLK
ALE
CLK
ALE
CLK
ALE
WR
WR
WR
RD
RD
RD
P2
P0
P0
P2
P0
P0
P2
P0
P0
P2 SFR
P0 SFR
P0 SFR
P2 SFR
P0 SFR
P0 SFR
P2 SFR
P0 SFR
P0 SFR
S1
S1
S1
DPL OUT
DPL OUT
DPL OUT
DPL OUT
DPL OUT
DPL OUT
S2
S2
S2
S3
S3
S3
DPH or P2 OUT
DPH or P2 OUT
DATA OUT
FLOAT
W1
W1
W1
DPH or P2 OUT
DATA OUT
FLOAT
DATA OUT
FLOAT
W2
W2
S4
AT89LP51/52 - Preliminary
P2 SFR
P0 SFR
P0 SFR
W3
S4
P2 SFR
P0 SFR
P0 SFR
S4
P2 SFR
P0 SFR
P0 SFR
21