AT89C55WD-33AU ATMEL [ATMEL Corporation], AT89C55WD-33AU Datasheet - Page 19
AT89C55WD-33AU
Manufacturer Part Number
AT89C55WD-33AU
Description
8-bit Microcontroller with 20K Bytes Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C55WD-33AU.pdf
(35 pages)
- Current page: 19 of 35
- Download datasheet (523Kb)
1921D–MICRO–6/08
Figure 18-1. Oscillator Connections
Note:
Figure 18-2. External Clock Drive Configuration
Table 18-1.
Mode
Idle
Idle
Power-down
Power-down
C1, C2 = 30 pF ± 10 pF for Crystals
Status of External Pins During Idle and Power-down Modes
= 40 pF ± 10 pF for Ceramic Resonators
Program
Memory
Internal
External
Internal
External
OSCILLATOR
EXTERNAL
SIGNAL
ALE
1
1
0
0
NC
C2
C1
PSEN
1
1
0
0
PORT0
Float
Float
Data
Data
XTAL2
XTAL1
GND
XTAL2
XTAL1
GND
PORT1
Data
Data
Data
Data
AT89C55WD
Address
PORT2
Data
Data
Data
PORT3
Data
Data
Data
Data
19
Related parts for AT89C55WD-33AU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
At89c55wd Microcontroller With 20k Bytes Flash
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Microcontroller with 20K Bytes Flash
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Atmel CryptoMemory
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
Atmel CryptoMemory
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
Atmel CryptoMemory, 16Kbit
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
8-bit Atmel Microcontrollers
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet: