TB28F400BVT80 Intel, TB28F400BVT80 Datasheet - Page 42

• Manufacturer Part Number: TB28F400BVT80
• Manufacturer: Intel

Specifications of TB28F400BVT80

• Density: 4Mb
• Access Time (max): 80ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temp Range: -40C to 85C
• Package Type: SOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 3/4.5V
• Operating Supply Voltage (max): 3.6/5.5V
• Word Size: 8/16Bit
• Number Of Words: 512K/256K
• Supply Current: 70mA
• Mounting: Surface Mount
• Pin Count: 44
• Lead Free Status / Rohs Status: Not Compliant

4-MBIT SmartVoltage BOOT BLOCK FAMILY
NOTES:
See AC Characteristics—WE# Controlled Write Operations for notes 1 through 11.
12. Chip-Enable controlled writes: write operations are driven by the valid combination of CE# and WE# in systems where
NOTES:
1. V
2. Write Program or Erase Setup Command.
3. Write Valid Address and Data (Program) or Erase Confirm Command.
4. Automated Program or Erase Delay.
5. Read Status Register Data.
6. Write Read Array Command.
42
CE# defines the write pulse-width (within a longer WE# timing waveform), all set-up, hold and inactive WE# times should
be measured relative to the CE# waveform.
CC
Power-Up and Standby.
Figure 18. Alternate AC Waveforms for Write Operations (CE#–Controlled Writes)
ADDRESSES (A)
WE# (W)
OE# (G)
CE# (E)
DATA (D/Q)
RP# (P)
WP#
V
PP
6.5V
(V)
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
HH
PPH
PPH
PPLK
IH
IL
IH
IL
IH
IL
IH
IL
IH
IL
IH
IH
IL
IL
IL
t
1
WLEL
2
1
High Z
t
PHEL
A
t
AVAV
IN
2
D
IN
t
SEE NEW DESIGN RECOMMENDATIONS
EHEL
t
t
t
EHWH
t
ELEH
DVEH
EHDX
t
AVEH
A
3
IN
D
IN
t
t
PHHEH
VPEH
t
t
EHAX
EHQV1,2,3,4
4
5
Valid
SRD
t
t
QVVL
QVPH
6
D
IN
0530_18