AT89LP6440-20MU Atmel, AT89LP6440-20MU Datasheet - Page 146
![MCU 8051 64K FLASH ISP 44VQFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
AT89LP6440-20MU
Manufacturer Part Number
AT89LP6440-20MU
Description
MCU 8051 64K FLASH ISP 44VQFN
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP6440-20MU.pdf
(194 pages)
Specifications of AT89LP6440-20MU
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-VQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89LP6440-20MU
Manufacturer:
Atmel
Quantity:
987
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146
AT89LP6440 - Preliminary
Table 22-1.
Notes:
POP direct
XCH A, Rn
XCH A, direct
XCH A, @Ri
XCHD A, @Ri
Branching
JC rel
JNC rel
JB bit, rel
JNB bit, rel
JBC bit, rel
JZ rel
JNZ rel
SJMP rel
ACALL addr11
LCALL addr16
RET
RETI
AJMP addr11
LJMP addr16
JMP @A+DPTR
JMP @A+PC
CJNE A, direct, rel
CJNE A, #data, rel
CJNE Rn, #data, rel
CJNE @Ri, #data, rel
CJNE A, @R0, rel
CJNE A, @R1, rel
DJNZ Rn, rel
DJNZ direct, rel
NOP
BREAK
(1)(3)
1. This escaped instruction is an extension to the instruction set. See
2. MOVX @DPTR instructions take 2 clock cycles when accessing ERAM and 4 clock cycles
3. The BREAK instruction acts as a 2 cycle NOP.
4. Instructions accessing the stack require additional cycles when using the extended stack.
when accessing FDATA, XDATA or CODE. (3 and 5 cycles for MOVX @/DPTR).
(1)
Instruction Execution Times and Exceptions (Continued)
(1)
(1)
Bytes
2
1
2
1
1
2
2
3
3
3
2
2
2
2
3
1
1
2
3
1
2
3
3
3
3
3
3
2
3
1
2
8051
24
12
12
12
12
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
12
–
–
–
–
Clock Cycles
AT89LP
2/3
3/5
4/6
4/5
4/5
1
2
2
2
3
3
4
4
4
3
3
3
3
4
2
3
4
4
4
4
4
3
4
1
2
4
Section 22.1 on page
(4)
(4)
(4)
(4)
(4)
3706A–MICRO–9/09
11,31,51,71,91,
01,21,41,61,81,
Hex Code
A1,C1,E1
B1,D1,F1
C8-CF
C6-C7
D6-D7
D8-DF
B8-BF
B6-B7
A5 B6
A5 B7
A5 73
A5 00
D0
C5
B5
B4
D5
40
50
20
30
10
60
70
80
12
22
32
02
73
00
147.
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