LC-46XD1E (serv.man7). Major IC Informations - Sharp TV Service Manual (repair manual). Page 21

LC-46/52XD1E-RU

7 – 21

64Mb- SDRAM  

16Mbit Flash Memory

Pin No.

Pin Name

I/O

Pin Function

38

CLK

I

Active on the positive going edge to sample all inputs.

19

I

Disables or enables device operation by masking or enabling all inputs except 
CLK,CKE and DQM.

37

CKE

I

Masks system clock to freeze operation from the next clock cycle.
CKE should be enabled at least one cycle prior to new command.
Disable input buffers for power down in standby.

22-26,

29-35

A0-A11

I

Row/column addresses are multiplexed on the same pins.
Row address: RA0-RA11,  Column address: CA0-CA8

20, 21

BA0-BA1

I

Selects bank to be activated during row address latch time.
Selects bank for read/write during column address latch time.

18

I

Latches row address on the positive going edge of the CLK with 

 low.

Eanbles row acccess <FmSdata>[amp   ] precharge.

17

I

Latches column addresses on the positive going edge of the CLK with 

 low.

Enables column access.

16

I

Enables write operation and row precharge.

Latches data in starting from 

,

 active.

15,39

DQM

I/O

Makes data output Hi-Z, tsHZ after the clock and masks the output. Blocks data 
input when DQM active.

2,4,5,7,8,10,11,13,42,44,45,

47,48,50,51,53

DQ0-X15

I/O

Data input/output are mutiplexed on the same pins
(X16;DQ0-15)

1,14,27,28,41,54

VDD/VSS

---

Power and ground for the input buffers and the core logic.

3,6,9,12,43,46,49,52,

VDDQ/VSSQ

---

Lsolated power supply and ground for the output buffers to provide improved 
noise immunity.

40

N.C/RFU

---

This pin is recommended to be left No Connection on the device.

Pin No.

Pin Name

I/O

Pin Function

1-10,

16-25,

48,13

A2-A22

I

22 Address Input.

29,31,33,35,38,40,42,44

DQ0-DQ7

I/O

8 Data Input/Output.

30,32,34,

36,39,41,43

DQ8-DQ14

I/O

Data Input/Output.

45

DQ15A-1

I/O

Data Input/Output or Address Input.

26

I

Chip Enable.

28

O

Output Enable

11

I

Write Enable.

12

I

Reset/Block Temporary Unprotect

15

O

Read/Busy Output.

47

I

Byte/Word Organization Select.

37

Vcc

-

Supply Voltage.

27,46

Vss

-

Ground.

N.C.

-

Not Connected Internally.

CS

RAS

RAS

CAS

CAS

WE

CAS WE

E
G

W

RP
RB

BYTE