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LC786961W View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
View to exact match
LC786961W
SANYO
SANYO -> Panasonic SANYO
LC786961W Datasheet PDF : 29 Pages
First Prev 21 22 23 24 25 26 27 28 29
SDRAM Interface
LC786961W
(1) Required specification for external SDRAM
Memory size :16Mbit or 64Mbit
Data width :16bit
CAS latency :2
Burst length :Full
(2) Interface pins to external SDRAM
Pin Name
Function at 16Mbit-SDRAM
Function at 64Mbit-SDRAM
Signal name in
Cf. P24, P25
SDDAT15 to SDDAT00
Data input/output (16bit)
Data input/output (16bit)
DDAT[15:0]
DDAT[15:0]
SDADRS10 to SDADRS00
Address output (11bit)
Address output (11bit)
DADD[10:0]
DADD[10:0]
SDADRS11
Not used
Address (A11) output
-
DADD[11]
SDADRS12
DQML (LDQM) output
Lower byte data mask control
Address (A12) or bank0 output
SDDQML
DADD[12]
SDBA
Bank output
Bank or bank1 output
DADD[11]
DADD[13]
SDDQM
DQMH (UDQM) output
Upper byte data mask control
DQMH (UDQM) output
Upper byte data mask control
SDDQMU
SDDQMU
GP13
Not used
DQML (LDQM) output
Lower byte data mask control
-
SDDQML
SDCSB
CSB output
CSB output
SDCSB
SDCSB
SDRASB
RASB output
RASB output
SDRASB
SDRASB
SDCASB
CASB output
CASB output
SDCASB
SDCASB
SDWEB
WEB output
WEB output
SDWEB
SDWEB
SDCKE
Clock enable output
Clock enable output
SDCKE
SDCKE
SDCLK
Clock output
Clock output
SDCLK
SDCLK
Notes
SDADRS11 and GP13 in 16Mbit-SDRAM using mode should be treated as described below.
SDADRS11 : Open (No connect)
GP13
: Use as other function or Open
SDDAT00 to SDDAT15 pins can have internal pull down resistor optionally. Those pull down resistors are set
to ON mode in initialization.
When setting the SDRAM using mode, those pull down resistors will be set to OFF mode.
Some signals named in P22 to P23 use different pins according to the using SDRAM. The signal name in P22 to
P23 for the actual pin is shown at the most right column in above table.
Upper step : Signal name in 16Mbit-SDRAM using mode
Lower step : Signal name in 64Mbit-SDRAM using mode
No.A2081-21/29
 

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