AT89LP52-20PU Atmel, AT89LP52-20PU Datasheet - Page 99

• Manufacturer Part Number: AT89LP52-20PU
• Description: IC MCU 8051 8K FLASH SPI 40PDIP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP52-20PU

• 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: 40-DIP (0.600", 15.24mm)
• 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: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Figure 18-6. External Program Memory Read Cycle
Figure 18-7. External Data Memory Read Cycle
Figure 18-8. External Data Memory Write Cycle
3709B–MICRO–12/10
PORT 0
PORT 2
PSEN
ALE
PORT 0
PORT 2
PORT 0
PORT 2
ALE
ALE
WR
RD
P2
P2
t
t
AVLL
AVLL
t
AVLL
t
t
LHLL
LHLL
t
LHLL
A0 - A7
A0 - A7
t
LLAX
A8 - A15 FROM DPH OR P2.0 - P2.7
A8 - A15 FROM DPH OR P2.0 - P2.7
A0 - A7
t
t
t
AVWL
QVWX
AVWL
t
RLAZ
t
LLPL
t
AVIV
t
t
t
LLWL
AVDV
LLWL
t
t
LLAX
t
LLAX
LLDV
A8 - A15
t
PLAZ
DATA OUT
t
QVWH
t
t
t
t
LLIV
PLIV
INSTR IN
WLWH
RLRH
t
PXIX
AT89LP51/52 - Preliminary
t
t
PXIZ
RLDV
t
RHDX
DATA IN
t
t
PLPH
PXAV
t
t
WHLH
WHLH
t
t
t
t
RHDZ
WHAX
WHQX
WHAX
A8 - A15
A0 - A7
P2
P2
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