tc59lm814 TOSHIBA Semiconductor CORPORATION, tc59lm814 Datasheet - Page 32

• Manufacturer Part Number: tc59lm814
• Description: 256mbits Network Fcram1
• Manufacturer: TOSHIBA Semiconductor CORPORATION

DATA INPUT/OUTPUT: DQ0~DQ7 or DQ15
output data of DQ0 to DQ15 are outputted synchronizing with the both edges of DQS output signal.
DATA STROBE: DQS or LDQS, UDQS
LDQS is allotted for Lower Byte (DQ0 to DQ7) Data. The UDQS is allotted for Upper Byte (DQ8 to DQ15) Data.
In write operation, the DQS used as an input signal is utilized for a latch of write data. In read operation, the
DQS that is an output signal provides the read data strobe.
POWER SUPPLY: V
REFERENCE VOLTAGE: V
The input data of DQ0 to DQ15 are taken in synchronizing with the both edges of DQS input signal. The
The DQS is bi-directional signal. Both edges of DQS are used as the reference of data input or output. The
V
V
V
DD
DDQ
REF
and V
is reference voltage for all input signals.
and V
SS
SSQ
are power supply pins for memory core and peripheral circuits.
are power supply pins for the output buffer.
DD
, V
DDQ
REF
, V
SS
, V
SSQ
TC59LM814/06CTG-50,-60
2005-06-21 32/39
Rev 1.2