8048/8035L/8748/8748~6/8748-8/8035/8035-8

AC TIMING SPECIFICATION FOR PROGRAMMING

TA = 2SOC ± SoC, Vee =SV ± S%, Voo = 2SV ± 1V

Symbol

Parameter

tAW

Address Setup Time to RESET t

tWA

Address Hold Time After RESET I

tow

Data in Setup Time to PROG I

two

Data in Hold Time After PROG !

tPH

RESET Hold Time to Verify

tvoow

Voo

tVOOH

Voo Hold Time After PROG !

tpw

Program Pulse Width

tTW

Test 0 Setup Time for Program Mode

tWT

Test 0 Hold Time After Program Mode

too

Test 0 to Data Out Delay

tww

RESET Pulse Width to Latch Address

tr. tf

Voo and PROG Rise and Fall Times

---

CPU Operation Cycle Time

tcv

tRE

RESET Setup Time Before EA 1,

Note: If Test 0 is high too can be triggered by RESET I

Min.

Mix.

Unit

Telt Condition.

4tcy

 

 

 

4tcy

 

 

 

4tcy

 

 

 

4tcy

 

 

 

4tcy

 

 

 

4tcy

 

 

 

0

 

 

 

50

60

ms

 

4tcy

 

 

 

4tcy

 

 

 

 

4tcy

 

 

4tcy

 

 

 

0.5

2.0

",s

 

5.0

 

",s

 

4tcy

 

 

 

DC SPECIFICATION FOR PROGRAMMING

TA = 25°C ± 5°C. Vee = 5V ± 5%, VDD = 25V ± 1V

Symbol

Parameter

Min.

Max.

Unit

Test Conditions

VOOH

Voo Program Voltage High Level

24.0

26.0

V

 

VOOL

Voo Voltage Low Level

4.75

5.25

V

 

VPH

PROG Program Voltage High Level

21.5

24.5

V

 

VPL

PROG Voltage Low Level

 

0.2

V

 

VEAH

EA Program or Verify Voltage High Level

21.5

24.5

V

8748

VEAH1

EA1 Verify Voltage High Level

11.4

12.6

V

8048

VEAL

EA Voltage Low Level

 

5.25

V

 

100

Voo High Voltage Supply Current

 

30.0

mA

 

IPROG

PROG High Voltage Supply Current

 

16.0

mA

 

lEA

EA High Voltage Supply Current

 

1.0

mA

 

6-16

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Image 159
Intel mcs-48 manual TA = 2SOC ± SoC, Vee =SV ± S%, Voo = 2SV ±