AT89LP6440-20AU Atmel, AT89LP6440-20AU Datasheet - Page 181

• 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

.
Table 26-10. DAC Characteristics
26.12 Test Conditions
26.12.1
Note:
26.12.2
Note:
3706A–MICRO–9/09
Symbol
t
t
AV
V
V
V
V
R
ACK
DAC
REF
IN
CMO
DO
OUT
DD
1. AC Inputs during testing are driven at V
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
AC Testing Input/Output Waveform
Float Waveform
V
float when 100 mV change from the loaded V
Parameter
Resolution
Clock Period
Conversion Time
Analog Supply Voltage
Reference Voltage
Single-Ended Input Voltage
Differential Output
Common Mode Voltage
Differential Output Voltage
Analog Output Resistance
IH
min. for a logic “1” and V
(1)
IL
max. for a logic “0”.
Condition
t
External Reference
Internal Reference
ACK
≥ t
CLCL
DD
(1)
- 0.5V for a logic “1” and 0.45V for a logic “0”. Timing measurements are made at
OH
/V
OL
level occurs.
AV
AV
AV
V
DD
DD
DD
11t
DD
AT89LP6440 - Preliminary
Min
500
/2 - V
0.9
50
/2 - 0.2
/2 - 0.2
0
ACK
- 0.3
REF
Typical
AV
AV
1.0
10
DD
DD
/2
/2
AV
AV
AV
V
DD
12t
DD
DD
DD
2t
±V
Max
/2 + V
100
1.1
/2 + 0.2
/2 + 0.2
ACK
CLCL
+ 0.3
REF
+
REF
Units
Bits
kΩ
ns
ns
V
V
V
V
V
V
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