LC-46X8E. Major IC Informations - Sharp TV Service Manual (repair manual). Page 9

LC-46X8E/S/RU

5 – 9

62, 63

CK, CK

I

The differential system clock Input.
All of the inputs are sampled on the rising edge of the clock except DQ's and DM's that are sam-
pled on both edges of the DQS.

22

CKE

I

Activates the CK signal when high and deactivates the CK signal when low. By deactivating the 
clock, CKE low indicates the Power down mode or Self refresh mode.

12

CS

I

CS enables the command decoder when low and disabled the command decoder when high. 
When the command decoder is disabled, new commands are ignored but previous operations con-
tinue.

11

RAS

I

Latches row addresses on the positive going edge of the CK with RAS low. Enables row access & 
precharge.

10

CAS

I

Latches column addresses on the positive going edge of the CK with CAS low. Enables column 
access.

53

WE

I

Enables write operation and row precharge.
Latches data in starting from CAS, WE active.

1, 28, 7, 34

DQS0-3

I/O

Data input and output are synchronized with both edge of DQS.

44, 67, 50, 35

DM0-3

I

Data In mask. Data In is masked by DM Latency=0 when DM is high in burst write. DM0 for DQ0 ~ 
DQ7, DM1 for DQ8 ~ DQ15, DM2 for DQ16 ~ DQ23, DM3 for DQ24 ~ DQ31.

40, 78, 41, 42, 2, 46, 
3, 4, 26, 65, 27, 66, 
29, 68, 30, 69, 48, 5, 
49, 6, 51, 8, 9, 52, 31, 
32, 71, 33, 37, 38, 75, 
39

DQ0-31

I/O

Data inputs/Outputs are multiplexed on the same pins.

14, 56

BA0, BA1

I

Selects which bank is to be active.