SAA4955 Просмотр технического описания (PDF) - Philips Electronics

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SAA4955

2.9-Mbit field memory

Philips Electronics 

Philips Semiconductors

2.9-Mbit field memory

Product specification

SAA4955TJ

PINNING

SYMBOL

GNDP

GND

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

SWCK

RSTW

WE

IE

VDD

VDD(P)

VDD(P)

VDD(O)

OE

RE

RSTR

SRCK

Q0

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q8

Q9

Q10

Q11

GNDO

GNDP

PIN

I/O

DESCRIPTION

1

ground

ground for protection circuits

2

ground

general purpose ground

3

digital input data input 11

4

digital input data input 10

5

digital input data input 9

6

digital input data input 8

7

digital input data input 7

8

digital input data input 6

9

digital input data input 5

10 digital input data input 4

11 digital input data input 3

12 digital input data input 2

13 digital input data input 1

14 digital input data input 0

15 digital input serial write clock

16 digital input write reset clock

17 digital input write enable

18 digital input input enable

19 supply

+3.3 V general purpose supply voltage (see figure note in Fig.1)

20 supply

+3.3 to 5.5 V supply voltage for protection circuits (see figure note in Fig.1)

21 supply

+3.3 to 5.5 V supply voltage for protection circuits

22 supply

+3.3 V supply voltage for output circuits

23 digital input output enable

24 digital input read enable

25 digital input reset read

26 digital input serial read clock

27 digital output data output 0

28 digital output data output 1

29 digital output data output 2

30 digital output data output 3

31 digital output data output 4

32 digital output data output 5

33 digital output data output 6

34 digital output data output 7

35 digital output data output 8

36 digital output data output 9

37 digital output data output 10

38 digital output data output 11

39 ground

ground for output circuits

40 ground

ground for protection circuits

1999 Apr 29

4

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