AT89LP52-20AU Atmel, AT89LP52-20AU Datasheet - Page 97

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

Specifications of AT89LP52-20AU

• 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-TQFP
• 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

Table 18-1.
Note:
Table 18-2.
18.5
The values shown in this table are valid for T
Table 18-3.
3709B–MICRO–12/10
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
1. No wait state (single-cycle) fetch speed for Fast Mode
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
(1)
A
= -40°C to 85°C and V
Condition
Low Power Oscillator
High Power Oscillator
T
V
Condition
A
DD
= 25°C; V
V
Min
= 2.4 to 5.5V
50
0
DD
= 2.4V to 5.5V
DD
= 5.0V
DD
Max
AT89LP51/52 - Preliminary
= 2.4 to 5.5V, unless otherwise noted.
20
49t
1.824
1.751
V
Min
Min
Min
200
135
1.3
1.9
40
12
12
50
DD
0
0
0
CLCL
= 4.5V to 5.5V
1.862
1.935
Max
Max
Max
150
300
150
1.6
2.2
25
12
24
5
5
Units
Units
Units
MHz
MHz
MHz
MHz
MHz
mV
ns
ns
ns
ns
ns
kΩ
µs
ns
V
V
97