AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 11

• Manufacturer Part Number: AT83C51SND1C_03
• Description: Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
• Manufacturer: ATMEL [ATMEL Corporation]

Internal Pin Structure
4109E–8051–06/03
Table 15. Detailed Internal Pin Structure
Notes:
Latch Output
1. For information on resistors value, input/output levels, and drive capability, refer to
2. When the Two Wire controller is enabled, P
3. In Port 2, P
the Section “DC Characteristics”, page 181.
allowing pseudo open-drain structure.
(A15:8).
Watchdog Output
1
transistor is continuously driven when outputting a high level bit address
VDD
periods
Circuit
2 osc
(1)
VSS
VSS
VDD
VDD
P
N
P
N
P
VSS
VDD
N
1
VDD
VSS
D+
D-
P
P
VDD
2
P
VDD
3
1
, P
AT8xC51SND1C
2
, and P
3
transistors are disabled
Input/Output
Input/Output
Input/Output
Input/Output
Output
Type
Input
MCMD
MDAT
DOUT
MCLK
P53:0
SCLK
DCLK
DSEL
Pins
RST
P1
P2
TST
ALE
ISP
P3
P4
P0
D+
D-
(2)
(3)
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