參數(shù)資料
型號(hào)： M34280E1FP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
中文描述： 單芯片4位CMOS微機(jī)紅外遙控遞質(zhì)
文件頁數(shù)： 29/47頁
文件大?。?/td> 508K
代理商： M34280E1FP
MITSUBISHI
ELECTRIC
40
MITSUBISHI MICROCOMPUTERS
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
(1) PROM mode (serial input/output)
The M34280E1FP/GP has a PROM mode in addition to a
normal operation mode. It has a function to serially input/output
the command codes, addresses, and data required for
operation (e.g., read and program) on the built-in PROM using
only a few pins. This mode can be selected by setting pins
SDA (serial data input/output), SCLK (serial clock input), PGM
and VPP to “H” after connecting wires as shown in Figure 1
and powering on the VDD pin, and then applying 12.5V to the
VPP pin.
In the PROM mode, three types of software commands (read,
program, and program verify) can be used. Clock-synchronous
serial I/O is used, beginning from the LSB (LSB first).
Refer to the Mitsubishi Data Book “DEVELOPMENT
SUPPORT TOOLS FOR MICROCOMPUTERS” about the
serial programmer for the Mitsubishi single-chip
microcomputers.
Fig. 27 Pin configuration of built-in PROM version (continued)
SDA
SCLK
PGM
Vpp
Vss
VDD
D0
D1
D2
D3
VDD
CARR
D7
D6
D5
D4
2
3
4
5
6
7
8
9
10
1
19
18
17
16
15
14
13
12
11
20
VSS
E0
G1
G2
G3
G0
E1
XIN
XOUT
E2
M34280E1FP/GP
Outline 20P2N-A
: connected to the ceramic resonance circuit
Note: The state of disconnected pins are the same as that at reset.
20P2E/F-A
PIN CONFIGURATION (TOP VIEW)
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