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UPD75P238 の電気的特性と機能

UPD75P238のメーカーはNECです、この部品の機能は「4-BIT SINGLE CHIP MICROCOMPUTER」です。


製品の詳細 ( Datasheet PDF )

部品番号 UPD75P238
部品説明 4-BIT SINGLE CHIP MICROCOMPUTER
メーカ NEC
ロゴ NEC ロゴ 




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UPD75P238 Datasheet, UPD75P238 PDF,ピン配置, 機能
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75P238
4-BIT SINGLE CHIP MICROCOMPUTER
DESCRIPTION
The µPD75P238 is a version of the µPD75238 in which the on-chip mask ROM is replaced by one-time PROM or
EPROM.
The one-time PROM version can be written to once only, and is useful for short-run and multiple device-
production of sets and early start-up. Also, the EPROM version allows programs to be written and rewritten, and
is thus ideal for system evaluation.
Functions are described in detail in the following User's Manual, which should be read when carrying out design
work.
µPD75238 User's Manual : IEU-731
The µPD75P238 EPROM product does not provide a level of reliability suitable for use as a volume
production product for users' devices. The EPROM product should be used solely for function evaluation
in experiments of preproduction.
FEATURES
o µPD75238 pin compatible
o High-voltage display outputs
o On-chip PROM: 32640 × 8
. S0 to S8 & T0 to T9
: Internal pull-down resistors
o On-chip RAM: 1024 × 4
. S9, S16 to S23 & T10 to T15: Open-drain
o Drive capability in same supply voltage range as mask version µPD75238 (2.7 to 6.0 V)
o Ports 4 & 5: No pull-up resistor
o Port 7: No pull-down resistor
Note No internal pull-up and pull-down resistor function by mask option.
USE
VCR, Audio-visual, ECR, Microwave oven
ORDERING INFORMATION
Ordering Code
Package
µPD75P238GJ-5BG
94-pin plastic QFP(s20 mm)
µPD75P238KF
94-pin ceramic WQFN
On-Chip ROM
One-time PROM
EPROM
Quality Grade
Standard
Standard
Please refer to “Quality grade on NEC Semiconductor Devices” (Document number IEI-1209) published by
NEC Corporation to know the specification of quality grade on the devices and its recommended applications.
This manual describes common parts of One-time PROM and EPROM products as PROM.
The information in this document is subject to change without notice.
Document No. IC-2596A
(O.D. No. IC-8014A)
Date Published February 1994 P
Printed in Japan
The mark 5 shows major revised points.
© NEC Corporation 1992

1 Page





UPD75P238 pdf, ピン配列
µPD75P238
PIN NAME
P00 to P03 :
P10 to P13 :
P20 to P23 :
P30 to P33 :
P40 to P43 :
P50 to P53 :
P60 to P63 :
P70 to P73 :
P80 to P83 :
P90 to P93 :
P100 to P103 :
P110 to P113 :
P120 to P123 :
P130 to P133 :
P140 to P143 :
P150 to P153 :
PH0 to PH3 :
T0 to T15 :
S0 to S23 :
VDD
:
VSS :
VLOAD
:
Port0
SCK0, SCK1
: Serial Clock I/O 0, 1
Port1
SO0, SO1
: Serial Data Output 0, 1
Port2
SI0, SI1
: Serial Data Input 0, 1
Port3
SB0, SB1
: Serial Bus I/O 0, 1
Port4
INT0, INT1, INT4 : External Vectored Interrupt Input 0, 1, 4
Port5
INT2
: External Test Input 2
Port6
PPO
: Programmable Pulse Output
Port7
TI0 : Timer Input 0
Port8
PTO0
: Programmable Timer Output 0
Port9
BUZ
: Buzzer Clock
Port10
PCL : Programmable Clock Output
Port11
AN0 to AN7
: Analog Input 0 to 7
Port12
AVREF
: Analog Reference Voltage
Port13
AVDD
: Analog VDD
Port14
AVSS
: Analog VSS
Port15
X1, X2
: Main System Clock Oscillation 1, 2
PortH
XT1, XT2
: Subsystem Clock Oscillation 1, 2
Digit Output
RESET
: Reset
Segment Output
VPP
: Programming Power Supply
Positive Power Supply
MD0 to MD3
: Mode Selection 0 to 3
Ground
IC : Internally Connected
Power Supply for FIP Driver
3


3Pages


UPD75P238 電子部品, 半導体
µPD75P238
1.1 PORT PINS (2/2)
Pin Name
P80
P81
P82
P83
P90 to P93
P100 to P103
P110 to P113
P120 to P123
P130 to P133
Input/Output
Input/output
Input/output
Input/output
Input
Input
Output
Output
Output
Output
Dual-
Function Pin
Function
8-Bit I/O
PPO
SCK1
SO1
4-bit input port (PORT8).
×
SI1
AN4 to AN7 4-bit input port (PORT9).
×
S16 to S19 P-ch open-drain 4-bit high-voltage output port.
S20 to S23 P-ch open-drain 4-bit high-voltage output port.
S0 to S3
P-ch open-drain 4-bit high-voltage output port.
Internal pull-down resistors.
S4 to S7
P-ch open-drain 4-bit high-voltage output port.
Internal pull-down resistors.
After Reset
Input
Input
High
impedance
VLOAD
level
Input/Output
Circuit Type*1
A
F
E
B
Y–A
I–D
I–E
I–E
P140
P141
P142*2
P143*2
P150*2
P151*2
P152*2
P153*2
PH0
PH1
PH2
PH3
Output
Output
Output
S8
P-ch open-drain 4-bit high-voltage output port.
S9 Internal pull-down resistor on P140 only.
S10/T15
S11/T14
S12/T13/PH0
S13/T12/PH1
P-ch open-drain 4-bit high-voltage output port.
S14/T11/PH2
S15/T10/PH3
S12/T13/P150
S13/T12/P151
P-ch open-drain 4-bit high-voltage output port.
S14/T11/P152
S15/T10/P153
* 1. A circle denotes Schmitt-triggerd input.
2. Direct LED drive capability.
×
VLOAD
level
High
impedance
High
impedance
I–E
I–D
I–D
I–D
6

6 Page



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部品番号部品説明メーカ
UPD75P238

4-BIT SINGLE CHIP MICROCOMPUTER

NEC
NEC


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