S71GS128NB0 SPANSION [SPANSION], S71GS128NB0 Datasheet - Page 120
S71GS128NB0
Manufacturer Part Number
S71GS128NB0
Description
128N based MCPs
Manufacturer
SPANSION [SPANSION]
Datasheet
1.S71GS128NB0.pdf
(195 pages)
- Current page: 120 of 195
- Download datasheet (3Mb)
Note: Data valid/invalid immediately after WAIT transitions (BCR[8] = 0). See
120
Output Impedance (BCR[5:4]): Default = Outputs Use Full Drive
Strength
The output driver strength can be altered to full, one-half, or one-quarter
strength to adjust for different data bus loading scenarios. The reduced-strength
options are intended for stacked chip (Flash + CellularRAM) environments when
there is a dedicated memory bus. The reduced-drive-strength option minimizes
the noise generated on the data bus during READ operations. Normal output drive
strength should be selected when using a discrete CellularRAM device in a more
heavily loaded data bus environment. Outputs are configured at full drive
strength during testing.
WAIT Configuration (BCR[8]): Default = WAIT Transitions One
Clock Before Data Valid/Invalid
The WAIT configuration bit is used to determine when WAIT transitions between
the asserted and the de-asserted state with respect to valid data presented on
the data bus. The memory controller will use the WAIT signal to coordinate data
transfer during synchronous READ and WRITE operations. When BCR[8] = 0,
data will be valid or invalid on the clock edge immediately after WAIT transitions
to the de-asserted or asserted state, respectively
When A8 = 1, the WAIT signal transitions one clock period prior to the data bus
going valid or invalid
WAIT Polarity (BCR[10]): Default = WAIT Active HIGH
The WAIT polarity bit indicates whether an asserted WAIT output should be HIGH
or LOW. This bit will determine whether the WAIT signal requires a pull-up or pull-
down resistor to maintain the de-asserted state.
BCR[5]
DQ[15:0]
0
0
1
1
WAIT
CLK
Figure 33. WAIT Configuration (BCR[8] = 0)
(Figure
High-Z
Table 20. Output Impedance
Data immediately valid (or invalid)
A d v a n c e
34).
CellularRAM Type 2
BCR[4]
0
1
0
1
Data[0]
I n f o r m a t i o n
(Figure 33
Data[1]
DRIVE STRENGTH
Figure
Reserved
Full
1/2
1/4
and
35.
Figure
cellRAM_00_A0 October 4, 2004
35).
Related parts for S71GS128NB0
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
TS 48/CIVIL/1-BIT ECC, X8 I/O AND 3V VCC SPANSION SLC NAND
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
TS 48/CIVIL/1-BIT ECC, X8 I/O AND 3V VCC SPANSION SLC NAND
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
MBM29F400TC-70PFTNSPANSION [FLASH MEMORY CMOS 4M (512K x 8/256K x 16) BIT]
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
AM29F010B70JI1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
S29AL016D70BAI02016 MEGABIT CMOS 3.0 VOLT ONLY BOOT SECTOR FLASH MEMORY
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
S29AL016M90FAI01016 MEGABIT (2M X 8 BIT / I M X 16 BIT) 3.0 VOLT ONLY BOOT SECTOR FLASH MEMORY
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
S29AL016M90FAI02016 MEGABIT (2M X 8 BIT / I M X 16 BIT) 3.0 VOLT ONLY BOOT SECTOR FLASH MEMORY
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet:
Part Number:
Description:
Manufacturer:
SPANSION
Datasheet: