CAT28C16AK-20 ON Semiconductor, CAT28C16AK-20 Datasheet - Page 5
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CAT28C16AK-20
Manufacturer Part Number
CAT28C16AK-20
Description
Manufacturer
ON Semiconductor
Datasheet
1.CAT28C16AK-20.pdf
(10 pages)
Specifications of CAT28C16AK-20
Density
16Kb
Interface Type
Parallel
Organization
2Kx8
Access Time (max)
200ns
Write Protection
Yes
Data Retention
100Year
Operating Supply Voltage (typ)
5V
Package Type
SOIC EIAJ
Operating Temp Range
0C to 70C
Supply Current
35mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
24
Lead Free Status / Rohs Status
Not Compliant
Read
data bus is set to a high impedance state when either CE or OE goes high. This 2−line control architecture can be used to
eliminate bus contention in a system environment.
Byte Write
and OE is high. Write cycles can be initiated using either WE
or CE, with the address input being latched on the falling
DATA OUT
ADDRESS
Data stored in the CAT28C16A is transferred to the data bus when WE is held high, and both OE and CE are held low. The
A write cycle is executed when both CE and WE are low,
DATA IN
WE
OE
CE
DATA OUT
ADDRESS
WE
OE
CE
V
t
AS
IH
t
OES
HIGH−Z
Figure 5. Byte Write Cycle [WE Controlled]
t
CS
t
t
AH
LZ
t
RC
DEVICE OPERATION
t
CE
t
Figure 4. Read Cycle
OLZ
t
WP
http://onsemi.com
t
t
OE
DATA VALID
DS
HIGH−Z
5
DATA VALID
edge of WE or CE, whichever occurs last. Data, conversely,
is latched on the rising edge of WE or CE, whichever occurs
first. Once initiated, a byte write cycle automatically erases
the addressed byte and the new data is written within 10 ms.
t
OH
t
t
DH
CH
t
OEH
t
DL
t
AA
t
WC
DATA VALID
t
t
OHZ
HZ