A28F010 Просмотр технического описания (PDF) - Intel
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A28F010 Datasheet PDF : 23 Pages
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28F010
A28F010
290266 – 3
Symbol
A0 – A16
DQ0 – DQ7
CE
OE
WE
VPP
VCC
VSS
NC
290266 – 2
Figure 2 28F010 Pin Configurations
Type
INPUT
INPUT OUTPUT
INPUT
INPUT
INPUT
Table 1 Pin Description
Name and Function
ADDRESS INPUTS for memory addresses Addresses are internally
latched during a write cycle
DATA INPUT OUTPUT Inputs data during memory write cycles
outputs data during memory read cycles The data pins are active high
and float to tri-state OFF when the chip is deselected or the outputs
are disabled Data is internally latched during a write cycle
CHIP ENABLE Activates the device’s control logic input buffers
decoders and sense amplifiers CE is active low CE high
deselects the memory device and reduces power consumption to
standby levels
OUTPUT ENABLE Gates the devices output through the data buffers
during a read cycle OE is active low
WRITE ENABLE Controls writes to the control register and the array
Write enable is active low Addresses are latched on the falling edge
and data is latched on the rising edge of the WE pulse
Note With VPP s 6 5V memory contents cannot be altered
ERASE PROGRAM POWER SUPPLY for writing the command
register erasing the entire array or programming bytes in the array
DEVICE POWER SUPPLY (5V g10%)
GROUND
NO INTERNAL CONNECTION to device Pin may be driven or left
floating
3
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