Sharp LC-32D44E Service Manual page 75

Pin No.
184
185
176
177
196
195
Digital power supply pins
8, 47, 67, 101, 124, 155, 173,
204
151, 158, 165, 170, 179, 187,
193, 200, 207, 212
3, 42, 55, 72, 84, 96, 113, 129
EP1, 9, 27, 48, 54, 68, 102,
112, 125, 136, 156, 161, 172,
189, 205
11. IC4201 (RH-IXB765WJQZQ)
This IC is 256Mb H-die DDR SDRAM (static dynamic random-access memory) IC.
In this equipment, it is used for LMI memory (for image processing), and data is used for operation of the Set-top-box decoder.
Pin No.
45, 46
44
24
23-21
20, 47
26, 27
29, 30, 31, 32, 35, 36, 37, 38, 39, 40,
28, 41, 42
2, 4, 5, 7, 8, 10, 11, 13, 54, 56, 57,
59, 60, 62, 63, 65
16, 51
14, 17, 19, 25, 43, 50, 53
3, 9, 15, 55, 61
6, 12, 52, 58, 64
1, 18, 33
34, 48, 66
49
Pin Name I/O
VDDDLL --- 1.2 V for DLL.
GNDDLL --- Ground for DLL.
VDDDE0 --- 1.2 V for delay element 1.
VSSDE0 --- Ground for delay element 1.
VDDDE1 --- 1.2 V for delay element 2.
VSSDE1 --- Ground for delay element 2.
VDD12 --- 1.2 V digital power supply.
VDD25 --- 2.5 V power supply when connected to DDR SDRAM on the LMI interface.
VDD33 --- 3.3 V power supply.
GND --- Ground.
Pin Name I/O
CK, CK I
CKE I
CS I
RAS, CAS, WE I
LDM, (UDM) I
BA0, BA1 I
A [0:12] I
DQ[0:15] I/O
LDQS, (U)DQS I/O
NC ---
VDDQ ---
VSSQ ---
VDD ---
VSS ---
VREF I
LC32D44E/S/RU-BK/GY (1st Eddition)
Pin Function
Clock : CK and CK are differential clock inputs.
Clock Enable : CKE HIGH activates, and CKE LOW deactivates internal clock
signals, and device input buffers and output drivers.
Chip Select : CS enables (registered LOW) and disables (registered HIGH) the
command decoder.
Command Inputs : RAS, CAS and WE (along with CS) define the command
beingentered.
Input Data Mask.
Bank Addres Inputs.
Address Inputs.
Data Input/Output : Data bus.
Data Strobe : Output with read data, input with write data.
No Connect : No internal electrical connection is present.
DQ Power Supply.
DQ Ground.
Power Supply.
Ground.
SSTL_2 reference voltage.
5 – 16
Pin Function