IBM EM78P447N manual AC Electrical Characteristic, Ta=- -40 C ~ 85 C, VDD=5V ±5%, VSS=0V

Page 39

EM78P447N 8-Bit Microcontroller with OTP ROM

Symbol

 

Parameter

 

Condition

 

Min

 

Typ.

 

Max

 

Unit

 

ISB2

 

Power down current

 

All input and I/O pins at VDD,

 

 

 

 

 

7

 

 

 

 

 

output pin floating, WDT

 

 

 

 

 

 

∝A

 

 

 

 

 

enabled

 

 

 

 

 

 

 

 

 

 

 

Operating supply current

 

/RESET= 'High', Fosc=32KHz

 

 

 

 

 

 

 

 

 

 

 

 

(Crystal type,CLKS="0"),

 

 

 

 

 

 

 

 

 

ICC1

 

(VDD=3V)

 

 

 

 

25

 

30

 

∝A

 

 

 

output pin floating, WDT

 

 

 

 

 

 

 

 

at two cycles/four clocks

 

 

 

 

 

 

 

 

 

 

 

 

 

disabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating supply current

 

/RESET= 'High', Fosc=32KHz

 

 

 

 

 

 

 

 

 

ICC2

 

 

(Crystal type,CLKS="0"),

 

 

 

30

 

35

 

 

 

 

(VDD=3V)

 

 

 

 

 

 

∝A

 

 

 

output pin floating, WDT

 

 

 

 

 

 

 

 

at two cycles/four clocks

 

 

 

 

 

 

 

 

 

 

 

 

 

enabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating supply current

 

/RESET= 'High', Fosc=4MHz

 

 

 

 

 

 

 

 

 

ICC3

 

 

(Crystal type, CLKS="0"),

 

 

 

1.6

 

2.2

 

mA

 

 

(VDD=5V)

 

 

 

 

 

 

 

 

 

output pin floating, WDT

 

 

 

 

 

 

 

 

at two cycles/two clocks

 

 

 

 

 

 

 

 

 

 

 

 

 

enabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating supply current

 

/RESET= 'High', Fosc=10MHz

 

 

 

 

 

 

 

 

 

 

 

 

(Crystal type, CLKS="0"),

 

 

 

 

 

 

 

 

 

ICC4

 

(VDD=5V)

 

 

 

 

2.8

 

5.0

 

mA

 

 

 

output pin floating, WDT

 

 

 

 

 

 

 

 

at two cycles/four clocks

 

 

 

 

 

 

 

 

 

 

 

 

 

enabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.2

AC Electrical Characteristic

 

 

 

 

 

 

 

 

 

 

 

(Ta=- -40°C ~ 85 °C, VDD=5V±5%, VSS=0V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

 

Parameter

 

Conditions

 

Min

 

Typ

 

Max

 

Unit

 

Dclk

 

Input CLK duty cycle

 

 

 

45

 

50

 

55

 

%

 

Tins

 

Instruction cycle time

 

Crystal type

 

100

 

 

 

60000

 

ns

 

 

(CLKS="0")

 

RC type

 

500

 

 

 

100000

 

ns

 

 

 

 

 

 

 

 

 

 

Ttcc

 

TCC input period

 

 

 

(Tins+20)/N*

 

 

 

 

 

ns

 

Tdrh

 

Device reset hold time

 

Ta = 25°C

 

11.3

 

16.2

 

21.6

 

ms

 

Trst

 

/RESET pulse width

 

Ta = 25°C

 

2000

 

 

 

 

 

ns

 

Twdt

 

Watchdog timer period

 

Ta = 25°C

 

11.3

 

16.2

 

21.6

 

ms

 

Tset

 

Input pin setup time

 

 

 

 

 

0

 

 

 

ns

 

Thold

 

Input pin hold time

 

 

 

15

 

20

 

25

 

ns

 

Tdelay

 

Output pin delay time

 

Cload=20pF

 

45

 

50

 

55

 

ns

 

Tiod

 

I/O delay for EMI enable

 

Cload=150pF

 

4

 

5

 

6

 

ns

 

Ttrr1

 

Rising time for EMI enable

 

Cload=150pF

 

190

 

200

 

210

 

ns

 

Ttrf1

 

Falling time for EMI enable

 

Cload=150pF

 

190

 

200

 

210

 

ns

 

Ttrr2

 

Rising time for EMI enable

 

Cload=300pF

 

380

 

400

 

420

 

ns

 

Ttrf2

 

Falling time for EMI enable

 

Cload=300pF

 

380

 

400

 

420

 

ns

 

Tdrc

 

ERC delay time

 

Ta = 25°C

 

1

 

3

 

5

 

ns

 

*Data in Typ. is measured at 5V ,25°C

*N= selected prescaler ratio.

Product Specification (V1.1) 03.30.2005

• 35

(This specification is subject to change without further notice)

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Contents EM78P447N Elan Microelectronics Corporation Contents Specification Revision History General Description EM78P447NBWM PIN Assignment Symbol Pin No Type Function EM78P447NAP and EM78P447NAM Pin DescriptionEM78P447NAS Pin Description Power supply EM78P447NBP and EM78P447NBWM Pin DescriptionEM78P447NCK and EN78P447NCM Pin Description EM78P447NDK and EM78P447NDM Pin Description Function Description3 R2 Program Counter & Stack Operational Registers1 R0 Indirect Addressing Register 2 R1 Time Clock /CounterFffh Call RET Retl RetiData Memory Configuration R5, R6 and R7 are I/O registers 5 R4 RAM Select Register6 R5~R7 Port 5 ~ Port7 7 R8~R1F and R20~R3E General Purpose RegisterControl Register Special Purpose Registers8 R3F Interrupt Status Register AccumulatorWDT Rate 3 IOC5 ~ IOC7 I/O Port Control RegisterIocb Wake-up Control Register for Port6 TCC RateWUE Ioce WDT Control RegisterExie Iocf Interrupt Mask RegisterTCC/WDT & Prescaler TCC and WDT Block DiagramIOD I/O PortsReset Reset and Wake-upSLEEP2 SLEEP1 Usage of Sleep1 and Sleep2 ModeSummary of the Initialized Values for Registers Address Name Reset Type BitIocb R3FISRExif Tcif WUE7 WUE6 WUE5 WUE4Events that may Affect the T and P Status Previous status before resetPrevious value before reset Status of RST, T, and P of Status RegisterInterrupt Controller Reset Block DiagramOscillator Oscillator ModesMode Fxt max.MHz Crystal Oscillator/Ceramic ResonatorsXTALSummary of Maximum Operating Speeds ConditionsLXT External RC Oscillator ModeOscillator Type Frequency Mode C1pF C2pF HXTCode Option Register Word Code Option RegisterProtect PR2~PR0 are protect bits, protect type as followingBit 12~0 Customer’s ID code Power On ConsiderationsExternal Power On Reset Circuit Customer ID Register WordResidue-Voltage Protection ResetInstruction Set Slep NOPDAA ContwRRC R Djza RDJZ R Rrca RAC Test Input/Output W aveform Timing DiagramItems Rating DC Electrical CharacteristicSymbol Parameter Condition Min Typ Max Unit Ta= 25 C, VDD= 5.0V±5%, VSS=AC Electrical Characteristic Symbol Parameter Conditions Min Typ Max UnitTa=- -40 C ~ 85 C, VDD=5V ±5%, VSS=0V Vih, Vil of TCC, /INT, /RESET Pin Device characteristicPort5, Port6 Port7 Voh vs. Ioh,VDD=5V Port5, Port6, and Port7 Voh vs. Ioh, VDD=3V Vol/Iol VDD=5V Vol/Iol VDD=3V Vol/Iol 100 Vol/Iol WDT Cext=100pF, Typical RC OSC Frequency Typical ICC1 and ICC2 vs. Temperature Maximum ICC1 and ICC2 vs. Temperature Typical ISB1 and ISB2 vs. Temperature Maximum ISB1 and ISB2 vs. Temperature EM78P447N HXT ImA Package Type Pin Count Package Size Lead plastic dual inline package（DIP）－ 300 milLead plastic dual inline package（DIP）－ 600 mil Lead plastic dual inline skinny package（DIP）－ 300 mil838 27TYP EM78P447N
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