8-Bit Microcontroller with OTP ROM
Product Specification
EM78P447N
ELAN MICROELECTRONICS CORP
All Rights Reserved
Trademark Acknowledgments
Copyright 2005 by ELAN Microelectronics Corporation
ELAN MICROELECTRONICS CORPORATION
Contents
FEATURES
DC Electrical Characteristic
Specification Revision History
DC ELECTRICAL CHARACTERISTICS
AC Electrical Characteristic
1 GENERAL DESCRIPTION
2 FEATURES
EM78P447N
Programmable free running watchdog timer
EM78P447N
EM78P447N
3 PIN ASSIGNMENT
This specification is subject to change without further notice
Fig. 1 Pin Assignment
Table 1 EM78P447NAP and EM78P447NAM Pin Description
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Table 2 EM78P447NAS Pin Description
Table 3 EM78P447NBP and EM78P447NBWM Pin Description
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Table 4 EM78P447NCK and EN78P447NCM Pin Description
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4 FUNCTION DESCRIPTION
Fig. 2 Functional Block Diagram
Table 5 EM78P447NDK and EM78P447NDM Pin Description
4.1.2 R1 Time Clock /Counter
4.1 Operational Registers
4.1.1 R0 Indirect Addressing Register
4.1.3 R2 Program Counter & Stack
Fig. 3 Program Counter Organization
Reset Vector
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00 PAGE0 0000~03FF
Fig. 4 Data Memory Configuration
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4.1.7 R8~R1F and R20~R3E General Purpose Register
4.1.5 R4 RAM Select Register
4.1.6 R5~R7 Port 5 ~ Port7
EM78P447N
4.2.1 A Accumulator
4.2 Special Purpose Registers
4.1.8 R3F Interrupt Status Register
4.2.2 CONT Control Register
4.2.4 IOCB Wake-up Control Register for Port6
4.2.3 IOC5 ~ IOC7 I/O Port Control Register
EM78P447N
4.2.5 IOCE WDT Control Register
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Fig. 5 Sleep Mode and Wake-Up Circuits on I/O Ports Block Diagram
4.2.6 IOCF Interrupt Mask Register
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Fig. 6 TCC and WDT Block Diagram
4.3 TCC/WDT & Prescaler
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Fig. 7 a The I/O Port and I/O Control Register Circuit
4.4 I/O Ports
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Fig.7 b The I/O Port with R-Option P70, P71 Circuit
4.5.1 RESET
4.5 RESET and Wake-up
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Table 6 Usage of Sleep1 and Sleep2 Mode
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Table 7 The Summary of the Initialized Values for Registers
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0x09~0x3E
4.5.2 The Status of RST, T, and P of STATUS Register
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Fig. 8 Controller Reset Block Diagram
4.6 Interrupt
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4.7 Oscillator
4.7.1 Oscillator Modes
Fig. 9 Interrupt Input Circuit
Fig. 10 Crystal/Resonator Circuit
4.7.2 Crystal Oscillator/Ceramic ResonatorsXTAL
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Fig. 11 Crystal/Resonator Circuit
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4.7.3 External RC Oscillator Mode
Fig. 12 External RC Oscillator Mode Circuit
4.8.1 Code Option Register Word
4.8 CODE Option Register
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Bit 8 CLKS Instruction period option bit 0 two oscillator periods
RESET
4.9 Power On Considerations
4.10 External Power On Reset Circuit
4.8.2 Customer ID Register Word
Vdd EM78P447N RESET
4.11 Residue-Voltage Protection
Vdd EM78P447N RESET
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4.12 Instruction Set
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MNEMONIC
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INSTRUCTION
OPERATION
This instruction is not recommended for R3F operation
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This instruction is applicable to IOC5 ~ IOC7, IOCB, IOCE, IOCF only
This instruction cannot operate under R3F
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4.13 Timing Diagram
This specification is subject to change without further notice
TEST POINTS
5 ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
DC Electrical Characteristic
EM78P447N
AC Electrical Characteristic
EM78P447N 8-Bit Microcontroller with OTP ROM
6.3 Device characteristic
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Fig.18 Port5, Port6
This specification is subject to change without further notice
EM78P447N
and Port7 Voh vs. Ioh,VDD=5V
Voh/Ioh VDD=3V
This specification is subject to change without further notice
EM78P447N
IohmA
Vol/Iol VDD=5V
This specification is subject to change without further notice
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IolmA
Vol/Iol VDD=3V
This specification is subject to change without further notice
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IolmA
Vol/Iol
This specification is subject to change without further notice
EM78P447N
IolmA
Vol/Iol
This specification is subject to change without further notice
EM78P447N
IolmA
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WDT Timeout
This specification is subject to change without further notice
period
R=5.1k
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R=3.3k
R=10k
ICC1:VDD=3V, Fosc=32 kHz, 2clock, WDT disable
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Fig. 28 Maximum Operating Current(ICC1 and ICC2) vs. Temperature
Fig. 29 Typical Operating Current(ICC3 and ICC4) vs. Temperature
Max ICC2
Fig. 30 Maximum Operating Current(ICC3 and ICC4) vs. Temperature
Maximum ICC3 and ICC4 vs. Temperature
Temperature
Fig. 31 Typical Standby Current(ISB1 and ISB2) vs. Temperature
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Fig. 32 Maximum Standby Current(ISB1 and ISB2) vs. Temperature
Fig. 33 Operating Voltage In Temperature Range from -40 to
Max ISB2
Fig. 34 EM78P447N I-V Curve Operating at 4 MHz
This specification is subject to change without further notice
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Fig. 35 EM78P447N I-V Curve Operating at 32.768 kHz
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APPENDIX A Package Types
B Package Information
20-Lead plastic dual inline package(DIP)- 300 mil
24-Lead plastic dual inline skinny package(DIP)- 300 mil
This specification is subject to change without further notice
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28-Lead plastic dual inline package(DIP)- 600 mil
32-Lead plastic dual inline package(DIP)- 600 mil
This specification is subject to change without further notice
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20-Lead plastic small outline package(SOP)- 300 mil
24-Lead plastic small outline package(SOP)- 300 mil
This specification is subject to change without further notice
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28-Lead plastic small outline package(SOP)- 300 mil
32-Lead plastic small outline package(SOP)- 300 mil
This specification is subject to change without further notice
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28-Lead Shrink Small Outline Package(SSOP)- 209 mil