AT89LP51RD2 Atmel Corporation, AT89LP51RD2 Datasheet - Page 237

• Manufacturer Part Number: AT89LP51RD2
• Manufacturer: Atmel Corporation

Specifications of AT89LP51RD2

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 42
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 7
• Adc Resolution (bits): 10
• Adc Speed (ksps): 153.8
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 4
• Isp: SPI/OCD/UART
• Watchdog: Yes

Table 25-9.
.
Table 25-10. DAC Characteristics
3714A–MICRO–7/11
Symbol
t
t
V
V
V
V
R
R
C
Symbol
t
t
V
V
V
V
R
ACK
ADC
ACK
DAC
REF
IN
CMI
DI
REF
IN
CMO
DO
IN
MUX
S/H
OUT
Parameter
Gain Error
Offset Error
Clock Period
Conversion Time
Reference Voltage
Single-Ended Input Voltage
Differential Input Common
Mode Voltage
Differential Input Voltage
Analog Input Resistance
Analog Mux Resistance
Sample & Hold Capacitance
Parameter
Resolution
Clock Period
Conversion Time
Reference Voltage
Single-Ended Input Voltage
Differential Output
Common Mode Voltage
Differential Output Voltage
Analog Output Resistance
ADC Characteristics (Continued)
Condition
t
External Reference
Internal Reference
ACK
Condition
External Reference
Internal Reference
≥ t
CLCL
AT89LP51RD2/ED2/ID2 Preliminary
V
V
V
V
V
DD
DD
DD
DD
DD
13t
11t
GND
/2 - V
/2 - V
Min
Min
500
500
100
/2 - 0.2
/2 - 0.2
/2 - 0.2
0.9
0.9
0
0
ACK
ACK
REF
REF
Typical
Typical
V
V
V
1.0
1.0
DD
DD
DD
16
16
10
10
3
/2
/2
/2
V
V
V
V
V
DD
DD
14t
DD
12t
DD
DD
2t
±V
2t
±V
/2 + V
/2 + V
Max
Max
/2 + 0.2
V
/2 + 0.2
/2 + 0.2
200
1.1
1.1
10
ACK
CLCL
ACK
CLCL
DD
REF
REF
+
+
REF
REF
Units
Units
LSB
LSB
Bits
kΩ
kΩ
pF
kΩ
ns
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
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