1997-2012 Microchip Technology Inc. DS21231E-page 1
25AA160/25LC160/25C160
Device Selection Table
Features:
Low-power CMOS technology:
- Write current: 3 mA maximum
- Read current: 500 A typical
- Standby current: 500 nA typical
2048 x 8-bit organization
16 byte page
Write cycle time: 5 ms max.
Self-timed erase and write cycles
Block write protection:
- Protect none, 1/4, 1/2 or all of array
Built-in write protection:
- Power on/off data protection circuitry
- Write enable latch
- Write-protect pin
Sequential read
High reliability:
- Endurance: 1 M cycles
- Data retention: > 200 years
- ESD protection: > 4000V
8-pin PDIP and SOIC packages
Temperature ranges supported:
Description:
The Microchip Technology Inc. 25AA160/25LC160/
25C160 (25XX160
*
) are 16 Kbit Serial Electrically
Erasable PROMs. The memory is accessed via a
simple Serial Peripheral Interface (SPI) compatible
serial bus. The bus signals required are a clock input
(SCK) plus separate data in (SI) and data out (SO)
lines. Access to the device is controlled through a Chip
Select (CS
) input.
Communication to the device can be paused via the
hold pin (HOLD
). While the device is paused, transi-
tions on its inputs will be ignored, with the exception of
chip select, allowing the host to service higher priority
interrupts.
Package Types
Block Diagram
Part
Number
VCC
Range
Max Clock
Frequency
Temp
Ranges
25AA160 1.8-5.5V 1 MHz I
25LC160 2.5-5.5V 2 MHz I
25C160 4.5-5.5V 3 MHz I,E
- Industrial (I): -40Cto +85C
- Automotive (E) (25C160): -40°C to +125°C
25XX160
CS
SO
WP
VSS
1
2
3
4
8
7
6
5
V
CC
HOLD
SCK
SI
PDIP/SOIC
SI
SO
SCK
CS
HOLD
WP
Status
Register
I/O Control
Memory
Control
Logic
X
Dec
HV Generator
EEPROM
Array
Page Latches
Y Decoder
Sense Amp.
R/W Control
Logic
VCC
VSS
16K SPI Bus Serial EEPROM
Not recommended for new designs –
Please use 25AA160A/B or 25LC160A/B.
25AA160/25LC160/25C160
DS21231E-page 2 1997-2012 Microchip Technology Inc.
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
(†)
VCC.............................................................................................................................................................................7.0V
All inputs and outputs w.r.t. V
SS ........................................................................................................ -0.6V to VCC + 1.0V
Storage temperature .................................................................................................................................-65°C to 150°C
Ambient temperature under bias...............................................................................................................-40°C to 125°C
Soldering temperature of leads (10 seconds) .......................................................................................................+300°C
ESD protection on all pins......................................................................................................................................... 4 KV
1.1 DC Characteristics
† NOTICE: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device. This
is a stress rating only and functional operation of the device at those or any other conditions above those indicated in
the operational listings of this specification is not implied. Exposure to maximum rating conditions for an extended
period of time may affect device reliability.
DC CHARACTERISTICS
Industrial (I): T
A = -40°C to +85°C VCC = 1.8V to 5.5V
Automotive (E): T
A = -40°C to +125°C VCC = 4.5V to 5.5V (25C160 only)
Param.
No.
Sym. Characteristics Min. Max. Units Conditions
D1 V
IH1 High-level input
voltage
2.0 VCC+1 V VCC2.7V (Note)
D2 VIH2 0.7 VCC VCC+1 V VCC< 2.7V (Note)
D3 VIL1 Low-level input
voltage
-0.3 0.8 V VCC2.7V (Note)
D4 V
IL2 -0.3 0.3 VCC VVCC < 2.7V (Note)
D5 VOL Low -level output
voltage
—0.4VIOL = 2.1 mA
D6 VOL —0.2VIOL = 1.0 mA, VCC < 2.5V
D7 V
OH High-level output
voltage
VCC -0.5 V IOH = -400 A
D8 I
LI Input leakage current -10 10 ACS = VCC, VIN = VSS TO VCC
D9 ILO Output leakage
current
-10 10 ACS = VCC, VOUT = VSS TO VCC
D10 CINT Internal Capacitance
(all inputs and
outputs)
—7pFTA = 25°C, CLK = 1.0 MHz,
V
CC = 5.0V (Note)
D11 I
CC Read
Operating Current
1
500
mA
A
VCC = 5.5V; FCLK = 3.0 MHz;
SO = Open
V
CC = 2.5V; FCLK = 2.0 MHz;
SO = Open
D12 I
CC Write
5
3
mA
mA
VCC = 5.5V
V
CC = 2.5V
D13 I
CCS Standby Current
5
1
A
A
CS = VCC = 5.5V, Inputs tied to VCC or
V
SS
CS = VCC = 2.5V, Inputs tied to VCC or
V
SS
Note: This parameter is periodically sampled and not 100% tested.
1997-2012 Microchip Technology Inc. DS21231E-page 3
25AA160/25LC160/25C160
1.2 AC Characteristics
AC CHARACTERISTICS
Industrial (I): T
A = -40°C to +85°C VCC = 1.8V to 5.5V
Automotive (E): T
A = -40°C to +125°C VCC = 4.5V to 5.5V (25C160 only)
Param.
No.
Sym. Characteristic Min. Max. Units Conditions
1F
CLK Clock Frequency
3
2
1
MHz
MHz
MHz
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
2T
CSS CS Setup Time 100
250
500
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
3T
CSH CS Hold Time 150
250
475
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
4T
CSD CS Disable Time 500 ns
5T
SU Data Setup Time 30
50
50
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
6T
HD Data Hold Time 50
100
100
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
7T
R CLK Rise Time 2 s (Note 1)
8T
F CLK Fall Time 2 s (Note 1)
9T
HI Clock High Time 150
230
475
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
10 T
LO Clock Low Time 150
230
475
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
11 T
CLD Clock Delay Time 50 ns
12 T
CLE Clock Enable Time 50 ns
13 T
V Output Valid from Clock
Low
150
230
475
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
14 T
HO Output Hold Time 0 ns (Note 1)
15 T
DIS Output Disable Time
200
250
500
ns
ns
ns
V
CC = 4.5V to 5.5V (Note 1)
V
CC = 2.5V to 4.5V (Note 1)
V
CC = 1.8V to 2.5V (Note 1)
16 T
HS HOLD Setup Time 100
100
200
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
17 T
HH HOLD Hold Time 100
100
200
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
18 T
HZ HOLD Low to Output High-
Z
100
150
200
ns
ns
ns
VCC = 4.5V to 5.5V (Note 1)
V
CC = 2.5V to 4.5V (Note 1)
V
CC = 1.8V to 2.5V (Note 1)
19 T
HV HOLD High to Output Valid 100
150
200
ns
ns
ns
VCC = 4.5V to 5.5V
V
CC = 2.5V to 4.5V
V
CC = 1.8V to 2.5V
20 T
WC Internal Write Cycle Time 5 ms
21 Endurance 1 M E/W
Cycles
(Note 2)
Note 1: This parameter is periodically sampled and not 100% tested.
2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please
consult the Total Endurance
Model which can be obtained from Microchip’s web site at: www.microchip.com.

25C160/P

Mfr. #:
Manufacturer:
Microchip Technology
Description:
EEPROM 2kx8 5V
Lifecycle:
New from this manufacturer.
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