AT89LP52-20MU Atmel, AT89LP52-20MU Datasheet - Page 101

• 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

18.8.2
Note:
18.8.3
18.8.4
18.8.5
3709B–MICRO–12/10
1. For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs. A port pin begins to
Float Waveform
I
I
Clock Signal Waveform for I
CC
CC
float when 100 mV change from the loaded V
Test Condition, Active Mode, All Other Pins are Disconnected
Test Condition, Idle Mode, All Other Pins are Disconnected
0.45V
(1)
V
CC
- 0.5V
0.2 V
CC
0.7 V
CLOCK SIGNAL
CLOCK SIGNAL
Tests in Active and Idle Modes, t
CC
t
CHCL
- 0.1V
CC
GND
(NC)
GND
(NC)
OH
V
V
/V
DD
DD
OL
level occurs.
RST
POL
X T AL 2
X T AL 1
GND
RST
POL
X T AL 2
X T AL 1
GND
t
CHCX
V
V
DD
DD
AT89LP51/52 - Preliminary
t
CLCL
I
I
CC
CC
V
V
DD
DD
t
CLCH
CLCH
t
CHCX
= t
CHCL
= 5 ns
101