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PDF AT93C86A Data sheet ( Hoja de datos )
| Número de pieza | AT93C86A | |
| Descripción | Three-wire Serial EEPROM | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• Low-voltage and Standard-voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
• User Selectable Internal Organization
– 16K: 2048 x 8 or 1024 x 16
• Three-wire Serial Interface
• Sequential Read Operation
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• 2 MHz Clock Rate (5V) Compatibility
• Self-timed Write Cycle (10 ms max)
• High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
• Automotive Devices Available
• 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), and 8-
lead TSSOP Packages
• Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
Description
The AT93C86A provides 16384 bits of serial electrically erasable programmable read
only memory (EEPROM), organized as 1024 words of 16 bits each when the ORG pin
is connected to VCC and 2048 words of eight bits each when it is tied to ground. The
device is optimized for use in many industrial and commercial applications where low-
power and low-voltage operations are essential. The AT93C86A is available in space
saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), and 8-
lead TSSOP packages.
www.DataSheet4U.com
Three-wire
Serial
EEPROM
16K (2048 x 8 or 1024 x 16)
AT93C86A
Table 1. Pin Configurations
Pin Name
Function
CS Chip Select
SK Serial Data Clock
DI Serial Data Input
DO Serial Data Output
GND
Ground
VCC
Power Supply
ORG
Internal Organization
NC No Connect
8-lead
Ultra Thin Mini-MAP (MLP
2x3)
VCC 8
NC 7
ORG 6
GND 5
1 CS
2 SK
3 DI
4 DO
Bottom View
8-lead PDIP
CS 1
SK 2
DI 3
DO 4
8 VCC
7 NC
6 ORG
5 GND
8-lead SOIC
CS 1
SK 2
DI 3
DO 4
8 VCC
7 NC
6 ORG
5 GND
8-lead TSSOP
CS 1
SK 2
DI 3
DO 4
8 VCC
7 NC
6 ORG
5 GND
Rev. 3408H–SEEPR–1/07
1
1 page  
AT93C86A
Table 5. Instruction Set for the AT93C86A
Address
Instruction SB Op Code
x8
x 16
READ
1 10
A10 – A0
A9 – A0
EWEN
1 00 11XXXXXXXXX 11XXXXXXXX
ERASE 1 11
A10 – A0
A9 – A0
WRITE
1 01
A10 – A0
A9 – A0
ERAL
1 00 10XXXXXXXXX 10XXXXXXXX
WRAL
1 00 01XXXXXXXXX 01XXXXXXXX
EWDS
1 00 00XXXXXXXXX 00XXXXXXXX
Data
x 8 x 16
D7 – D0 D15 – D0
D7 – D0 D15 – D0
Comments
Reads data stored in memory,
at specified address.
Write enable must precede all
programming modes.
Erases memory location An – A0.
Writes memory location An – A0.
Erases all memory locations.
Valid only at VCC = 4.5V to 5.5V.
Writes all memory locations.
Valid when VCC = 4.5V to 5.5V and
Disable Register cleared.
Disables all programming
instructions.
Functional
Description
The AT93C86A is accessed via a simple and versatile three-wire serial communication
interface. Device operation is controlled by seven instructions issued by the host pro-
cessor. A valid instruction starts with a rising edge of CS and consists of a Start Bit
(logic “1”) followed by the appropriate Op Code and the desired memory address
location.
READ (READ): The Read (READ) instruction contains the address code for the mem-
ory location to be read. After the instruction and address are decoded, data from the
selected memory location is available at the serial output pin DO. Output data changes
are synchronized with the rising edges of serial clock SK. It should be noted that a
dummy bit (logic “0”) precedes the 8- or 16-bit data output string. The AT93C86A sup-
ports sequential read operations. The device will automatically increment the internal
address pointer and clock out the next memory location as long as CS is held high. In
this case, the dummy bit (logic “0”) will not be clocked out between memory locations,
thus allowing for a continuous stream of data to be read.
ERASE/WRITE (EWEN): To assure data integrity, the part automatically goes into the
Erase/Write Disable (EWDS) state when power is first applied. An Erase/Write Enable
(EWEN) instruction must be executed first before any programming instructions can be
carried out. Please note that once in the EWEN state, programming remains enabled
until an EWDS instruction is executed or VCC power is removed from the part.
ERASE (ERASE): The Erase (ERASE) instruction programs all bits in the specified
memory location to the logical “1” state. The self-timed erase cycle starts once the
ERASE instruction and address are decoded. The DO pin outputs the Ready/Busy sta-
tus of the part if CS is brought high after being kept low for a minimum of 250 ns (tCS). A
logic “1” at pin DO indicates that the selected memory location has been erased, and the
part is ready for another instruction.
WRITE (WRITE): The Write (WRITE) instruction contains the 8 or 16 bits of data to be
written into the specified memory location. The self-timed programming cycle tWP starts
after the last bit of data is received at serial data input pin DI. The DO pin outputs the
Ready/Busy status of the part if CS is brought high after being kept low for a minimum of
3408H–SEEPR–1/07
5
5 Page 
AT93C86A
AT93C86A Ordering Information(1)
Ordering Code
Package
Operation Range
AT93C86A-10PU-2.7(2)
AT93C86A-10PU-1.8(2)
AT93C86A-10SU-2.7(2)
AT93C86A-10SU-1.8(2)
AT93C86A-10TU-2.7(2)
AT93C86A-10TU-1.8(2)
AT93C86AY1-10YU-1.8(2)(Not recommended for new
design)
AT93C86AY6-10YH-1.8(3)
8P3
8P3
8S1
8S1
8A2
8A2
8Y1
8Y6
Lead-Free/Halogen-Free/
Industrial Temperature
(−40°C to 85°C)
AT93C86A-W1.8-11(4)
Die Sale
Industrial Temperature
(−40°C to 85°C)
Notes:
1. For 2.7V devices used in a 4.5V to 5.5V range, please refer to performance values in the AC and DC characteristics tables.
2. “U” designates Green package + RoHS compliant.
3. “H” designates Green Package + RoHS compliant, with NiPdAu Lead Finish.
4. Available in Waffle pack and Wafer form; order as SL788 for inkless Wafer form. Bumped die available upon request. Please
contact Serial EEPROM marketing.
Package Type
8P3 8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1 8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8A2 8-lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
8Y1 8-lead, 4.90 mm x 3.00 mm Body, Dual Footprint, Non-leaded, Miniature Array Package (MAP)
8-lead, 2.00 mm x 3.00 mm Body, 0.50 mm Pitch, Ultra Thin Mini-MAP, Dual No Lead Package (DFN), (MLP 2x3
8Y6 mm)
Options
−2.7 Low Voltage (2.7V to 5.5V)
−1.8 Low Voltage (1.8V to 5.5V)
3408H–SEEPR–1/07
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AT93C86A.PDF ] | |
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