AT89LP6440-20AU Atmel, AT89LP6440-20AU Datasheet - Page 173

• Manufacturer Part Number: AT89LP6440-20AU
• Description: MCU 8051 64K FLASH ISP 44TQFP
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP6440-20AU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 8K x 8
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Package: 44TQFP
• Device Core: 8051
• Family Name: 89LP
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 38
• Interface Type: 2-Wire/SPI
• On-chip Dac: 8-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26.4
The values shown in this table are valid for T
Figure 26-5. External Clock Drive Waveform
Table 26-1.
Table 26-2.
26.5
The values shown in this table are valid for T
Table 26-3.
3706A–MICRO–9/09
Symbol
1/t
t
t
t
t
t
Symbol
f
f
Symbol
R
V
V
V
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
XTAL
RC
POR
WDTRST
POR
BOD
BH
RST
CLCL
Clock Characteristics
Reset Characteristics
Parameter
Oscillator Frequency
Clock Period
External Clock High Time
External Clock Low Time
External Clock Rise Time
External Clock Fall Time
Parameter
Crystal Oscillator Frequency
Internal Oscillator Frequency
Parameter
Reset Pull-up Resistor
Power-On Reset Threshold
Brown-Out Detector Threshold
Brown-Out Detector Hysteresis
Power-On Reset Delay
Watchdog Reset Pulse Width
External Clock Parameters
Clock Characteristics
Reset Characteristics
A
A
= -40°C to 85°C and V
= -40°C to 85°C and V
Condition
Low Speed Oscillator
High Speed Oscillator
T
V
Condition
A
DD
= 25°C; V
V
Min
= 2.4 to 3.6V
DD
= 2.0V to 3.6V
DD
= 3.0V
DD
DD
Max
= 2.4 to 3.6V, unless otherwise noted.
= 2.4 to 3.6V, unless otherwise noted.
AT89LP6440 - Preliminary
16t
V
7.92
7.60
Min
Min
Min
200
135
0.5
1.3
1.9
50
12
12
10
50
DD
0
CLCL
= 2.4V to 3.6V
Max
Max
8.08
8.40
Max
100
150
300
150
1.6
2.2
20
24
5
5
Units
Units
Units
MHz
MHz
MHz
MHz
kHz
mV
ns
ns
ns
ns
ns
kΩ
µs
ns
V
V
173