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S93C46B Schematic ( PDF Datasheet ) - Seiko Instruments

Teilenummer S93C46B
Beschreibung (S93Cx6B) CMOS SERIAL E2PROM
Hersteller Seiko Instruments
Logo Seiko Instruments Logo 




Gesamt 42 Seiten
S93C46B Datasheet, Funktion
www.DataSheet4U.com
Rev. 3.1_01
CMOS SERIAL E2PROM
S-93C46B/56B/66B
The S-93C46B/56B/66B is a high speed, low current
consumption, 1/2/4 K-bit serial E2PROM with a wide
operating voltage range. It is organized as 64-word
× 16-bit, 128-word × 16-bit, 256-word × 16-bit,
respectively. Each is capable of sequential read, at
which time addresses are automatically incremented
in 16-bit blocks. The instruction code is compatible
with the NM93CS46/56/66.
„ Features
Low current consumption
Standby: 1.5 µA Max. (VCC = 5.5 V)
Operating: 0.8 mA Max. (VCC = 5.5 V)
0.4 mA Max. (VCC = 2.5 V)
Wide operating voltage range Read:
1.8 to 5.5 V (at 40 to +85°C)
Write:
2.7 to 5.5 V (at 40 to +85°C)
Sequential read capable
Write disable function when power supply voltage is low
Function to protect against write due to erroneous instruction recognition
Endurance:
107 cycles/word* (at +25°C) write capable,
106 cycles/word* (at +85°C)
3 × 105 cycles/word* (at +105°C)
* For each address (Word: 16 bits)
Data retention: 10 years (after rewriting 106 cycles/word at +85°C)
S-93C46B:
1 K-bit NM93CS46 instruction code compatible
S-93C56B:
2 K-bit NM93CS56 instruction code compatible
S-93C66B:
4 K-bit NM93CS66 instruction code compatible
High-temperature operation: +105°C Max. supported
(Only S-93Cx6BD0H-J8T2, S-93Cx6BD0H-T8T2)
„ Packages
Package name
8-Pin DIP
8-Pin SOP(JEDEC)
8-Pin TSSOP
SNT-8A
Package
DP008-F
FJ008-A
FT008-A
PH008-A
Drawing code
Tape
FJ008-D
FT008-E
PH008-A
Reel
FJ008-D
FT008-E
PH008-A
Caution This product is intended to use in general electronic devices such as consumer electronics,
office equipment, and communications devices. Before using the product in medical
equipment or automobile equipment including car audio, keyless entry and engine control
unit, contact to SII is indispensable.
Seiko Instruments Inc.
1






S93C46B Datasheet, Funktion
www.DataSheet4U.com
CMOS SERIAL E2PROM
S-93C46B/56B/66B
Rev.3.1_01
2. S-93C56B
Table 7
Instruction
Start Bit Operation
Address
Data
Code
SK input clock
1 2 3 4 5 6 7 8 9 10 11
12 to 27
READ (Read data)
1 1 0 x A6 A5 A4 A3 A2 A1 A0 D15 to D0 Output*1
WRITE (Write data)
1 0 1 x A6 A5 A4 A3 A2 A1 A0 D15 to D0 Input
ERASE (Erase data)
1 1 1 x A6 A5 A4 A3 A2 A1 A0
WRAL (Write all)
1 0 0 0 1 x x x x x x D15 to D0 Input
ERAL (Erase all)
1 0 0 10xxxxxx
EWEN (Write enable)
1 0 0 11xxxxxx
EWDS (Write disable)
1 0 0 00xxxxxx
*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark x: Don’t care
3. S-93C66B
Table 8
Instruction
Start Bit Operation
Code
Address
Data
SK input clock
1 2 3 4 5 6 7 8 9 10 11
12 to 27
READ (Read data)
1 1 0 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Output*1
WRITE (Write data)
1 0 1 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Input
ERASE (Erase data)
1 1 1 A7 A6 A5 A4 A3 A2 A1 A0
WRAL (Write all)
1 0 0 0 1 x x x x x x D15 to D0 Input
ERAL (Erase all)
1 0 0 10xxxxxx
EWEN (Write enable)
1 0 0 11xxxxxx
EWDS (Write disable)
1 0 0 00xxxxxx
*1. When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark x: Don’t care
6 Seiko Instruments Inc.

6 Page









S93C46B pdf, datenblatt
www.DataSheet4U.com
CMOS SERIAL E2PROM
S-93C46B/56B/66B
Rev.3.1_01
3. Reading (READ)
The READ instruction reads data from a specified address.
After CS has gone high, input an instruction in the order of the start bit, read instruction, and address.
Since the last input address (A0) has been latched, the output status of the DO pin changes from high
impedance (Hi-Z) to low, which is held until the next rise of SK. 16-bit data starts to be output in
synchronization with the next rise of SK.
3.1 Sequential read
After the 16-bit data at the specified address has been output, inputting SK while CS is high
automatically increments the address, and causes the 16-bit data at the next address to be output
sequentially. The above method makes it possible to read the data in the whole memory space.
The last address (An yyy A1 A0 = 1 yyy 1 1) rolls over to the top address (An yyy A1 A0 = 0 yyy 0 0).
CS
SK
1 2 3 4 5 6 7 8 9 10 11 12
23 24 25 26 27 28
39 40 41 42 43 44
DI <1> 1 0 A5 A4 A3 A2 A1 A0
DO
Hi-Z
0 D15 D14 D13
D2 D1 D0 D15 D14 D13
D2 D1 D0 D15 D14 D13
Hi-Z
ADRINC
ADRINC
Figure 8 Read Timing (S-93C46B)
CS
SK
1 2 3 4 5 6 7 8 9 10 11 12 13 14
24 25 26 27 28 29
40 41 42 43 44 45
DI
DO
<1> 1 0
A6 A5 A4 A3 A2 A1 A0
X: S-93C56B
Hi-Z A7: S-93C66B
0 D15 D14 D13
D2 D1 D0 D15 D14 D13
D2 D1 D0 D15 D14 D13
ADRINC
Figure 9 Read Timing (S-93C56B, S-93C66B)
ADRINC
Hi-Z
12 Seiko Instruments Inc.

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