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参数资料
| 型号： | M34238MK-XXXGP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | PLASTIC, SOP-20 |
| 文件页数： | 25/41页 |
| 文件大小： | 243K |
| 代理商： | M34238MK-XXXGP |
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MITSUBISHI MICROCOMPUTERS
4238 Group
30
PROM MODE (serial input/output)
The M34238EK-XXXGP has a PROM mode in addition to a normal
operation mode. It has a function to serially input/output the com-
mand 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), and PGM 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, pro-
gram, 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. 1 Pin connection at PROM mode
SDA
SCLK
PGM
VPP
VSS
VDD
*
V : connected to the ceramic resonance circuit
Outline 20P2 N-A
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
E
G1
G2
G3
G0
RESET
XIN
XOUT
CNVSS
M34238EK-XXXGP
Note. The state of disconnected pins are the same as that at reset.
PROM VERSION OF M34238MK-XXXGP
相关PDF资料 |
PDF描述 |
|---|---|
| M34250E2-XXXFP | 4-BIT, OTPROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34250M2-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34250M2-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34280M1-XXXFP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M34280M1-XXXGP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M3424 SL001 | 制造商:Alpha Wire Company 功能描述:CBL 6PR 24AWG SLT 1000' |
| M3424 SL002 | 制造商:Alpha Wire Company 功能描述:CBL 6PR 24AWG SLT 500' |
| M3424 SL005 | 制造商:Alpha Wire Company 功能描述:CBL 6PR 24AWG SLT 100' |
| M3424-0003 | 制造商:Bonitron 功能描述:OVERVOLTAGE BRAKING TRANSISTOR |
| M3424-SL002 | 制造商:Alpha Wire 功能描述: |
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