AT89LP428-20AU Atmel, AT89LP428-20AU Datasheet - Page 137

• Manufacturer Part Number: AT89LP428-20AU
• Description: MCU 8051 4K FLASH SPI 32TQFP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP428-20AU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 30
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Processor Series: AT89x
• Core: 8051
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

24.9.3
24.9.4
24.9.5
24.9.6
3654A–MICRO–8/09
I
I
Clock Signal Waveform for I
I
CC
CC
CC
Test Condition, Active Mode, All Other Pins are Disconnected
Test Condition, Idle Mode, All Other Pins are Disconnected
Test Condition, Power-down Mode, All Other Pins are Disconnected, V
0.45V
V
CC
- 0.5V
0.2 V
CC
0.7 V
CLOCK SIGNAL
CLOCK SIGNAL
Tests in Active and Idle Modes, t
CC
t
(NC)
CHCL
- 0.1V
CC
V
(NC)
(NC)
CC
V
V
CC
CC
RST
XTAL2
XTAL1
GND
RST
XTAL2
XTAL1
GND
RST
XTAL2
XTAL1
GND
t
CHCX
V
CC
V
V
CC
CC
I
CC
t
V
CLCL
I
I
CC
CC
CC
V
V
CC
CC
t
CLCH
CLCH
t
CHCX
= t
CHCL
CC
= 5 ns
= 2V to 5.5V
AT89LP428/828
137