SII S-93C86BD4H

Rev.2.2_00
S-93C86B
CMOS SERIAL E2PROM
The S-93C86B is a high speed, low current
consumption, 16 K-bit serial E2PROM with a wide
operating voltage range. It is organized as 1024-word
× 16-bit, respectively. This product is capable of
sequential read, at which time addresses are
automatically incremented in 16-bit blocks. The
instruction code is compatible with the NM93CS86.
„ Features
• Low current consumption
• Wide operating voltage range
Standby:
1.5 µA Max. (VCC = 5.5 V, at −40 to +85°C)
Operating: 0.8 mA Max. (VCC = 5.5 V)
0.4 mA Max. (VCC = 2.5 V)
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*1 (at +25°C) write capable,
106 cycles/word*1 (at +85°C)
3 × 105 cycles/word*1 (at +105°C)
*1. For each address (Word: 16 bits)
• Data retention:
10 years (after rewriting 106 cycles/word at +85°C)
• S-93C86B:
16 K-bit NM93CS86 instruction code compatible
• High-temperature operation:
+105°C Max. supported
(Only S-93C86BD4H-J8T2G and S-93C86BD4H-T8T2G)
• Write time:
4.0 ms Max.
• Lead-free products
„ Packages
Package name
8-Pin SOP(JEDEC)
8-Pin TSSOP
Package
FJ008-A
FT008-A
Drawing code
Tape
FJ008-D
FT008-E
Reel
FJ008-D
FT008-E
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
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Pin Configurations
Table 1
8-Pin SOP(JEDEC)
Top view
CS
1
8
VCC
SK
2
7
NC
DI
3
6
TEST
DO
4
5
GND
Figure 1
Pin No.
1
2
3
4
5
6
7
8
Symbol
CS
SK
DI
DO
GND
TEST*1
NC
VCC
Description
Chip select input
Serial clock input
Serial data input
Serial data output
Ground
Test
No connection
Power supply
*1. Connect to GND or VCC.
Even if this pin is not connected, performance is not affected so
long as the absolute maximum rating is not exceeded.
S-93C86BD4I-J8T1G
S-93C86BD4H-J8T2G
Remark See Dimensions for details of the package drawings.
Table 2
8-Pin TSSOP
Top view
CS
SK
DI
DO
8
7
6
5
1
2
3
4
Figure 2
S-93C86BD4I-T8T1G
S-93C86BD4H-T8T2G
VCC
NC
TEST
GND
Pin No.
1
2
3
4
5
6
7
8
Symbol
CS
SK
DI
DO
GND
TEST*1
NC
VCC
Description
Chip select input
Serial clock input
Serial data input
Serial data output
Ground
Test
No connection
Power supply
*1. Connect to GND or VCC.
Even if this pin is not connected, performance is not affected so
long as the absolute maximum rating is not exceeded.
Remark See Dimensions for details of the package drawings.
2
Seiko Instruments Inc.
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Block Diagram
Memory array
VCC
Address
decoder
Data register
GND
Output buffer
DO
DI
Mode decode logic
CS
Clock pulse
monitoring circuit
SK
Voltage detector
Clock generator
Figure 3
Seiko Instruments Inc.
3
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Instruction Sets
Table 3
Instruction
SK input clock
Start Bit
1
READ (Read data)
WRITE (Write data)
ERASE (Erase data)
1
1
1
1
0
1
0
1
1
WRAL (Write all)
ERAL (Erase all)
1
1
0
0
0
0
A9
A9
A9
0
1
EWEN (Write enable)
1
0
0
1
Operation Code
2
3
4
5
6
Address
7 8 9 10 11 12 13
Data
14 to 29
A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Output*1
A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Input
A8 A7 A6 A5 A4 A3 A2 A1 A0

1 x x x x x x x x D15 to D0 Input
0 x x x x x x x x

1
x
x
x
x
x
x
x
x

EWDS (Write disable)
1
0
0
0 0 x x x x x x x x

*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
4
Seiko Instruments Inc.
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Absolute Maximum Ratings
Table 4
Item
Symbol
Ratings
Unit
Power supply voltage
VCC
−0.3 to +7.0
V
Input voltage
VIN
−0.3 to VCC +0.3
V
Output voltage
VOUT
−0.3 to VCC
V
Operating ambient temperature
Topr
−40 to +105
°C
Storage temperature
Tstg
−65 to +150
°C
Caution The absolute maximum ratings are rated values exceeding which the product could
suffer physical damage. These values must therefore not be exceeded under any
conditions.
„ Recommended Operating Conditions
Table 5
Item
Symbol
Power supply voltage
VCC
−40 to +85°C
Min.
Typ.
Max.
Conditions
+85 to +105°C
Unit
Min. Typ. Max.
READ/EWDS
WRITE/ERASE/
WRAL/ERAL/EWEN
1.8

5.5
4.5

5.5
V
2.7

5.5
4.5

5.5
V
VCC = 4.5 to 5.5 V
2.0

VCC
2.0

VCC
V
VCC = 2.7 to 4.5 V
0.8 × VCC

VCC



V
VCC = 1.8 to 2.7 V
0.8 × VCC
0.0

VCC
0.8


0.8
V


0.0

VCC = 4.5 to 5.5 V
VCC = 2.7 to 4.5 V
0.0

0.2 × VCC



V
VCC = 1.8 to 2.7 V
0.0

0.15 × VCC



V
High level input voltage VIH
Low level input voltage VIL
V
„ Pin Capacitance
Table 6
Item
Symbol
Input Capacitance
CIN
Output Capacitance
COUT
Conditions
(Ta = 25°C, f = 1.0 MHz, VCC = 5.0 V)
Min.
Typ.
Max.
Unit
VIN = 0 V


8
pF
VOUT = 0 V


10
pF
„ Endurance
Table 7
Item
Endurance
Symbol
NW
Operating
Temperature
Min.
Typ.
Max.
−40 to +85°C
106


+85 to +105°C
3 × 105


Unit
cycles/word*1
*1. For each address (Word: 16 bits)
Seiko Instruments Inc.
5
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ DC Electrical Characteristics
Table 8
Item
−40 to +85°C
+85 to +105°C
Symbol Conditions VCC = 4.5 to 5.5 V VCC = 2.5 to 4.5 V VCC = 1.8 to 2.5 V VCC = 4.5 to 5.5 V
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
Current
consumption ICC1
(READ)
DO no load



0.8


0.5


0.4

0.8
Unit
mA
Table 9
−40 to +85°C
Item
Symbol
Current consumption
ICC2
(WRITE)
Conditions
VCC = 4.5 to 5.5 V
+85 to +105°C
VCC = 2.7 to 4.5 V
Unit
VCC = 4.5 to 5.5 V
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.


2.0


1.5


2.0
DO no load
mA
Table 10
Item
Standby
current
consumption
Symbol
ISB
Input leakage
ILI
current
Output
leakage
ILO
current
Low level
V
output voltage OL
High level
V
output voltage OH
Write enable
latch data hold VDH
voltage
6
Conditions
−40 to +85°C
+85 to +105°C
VCC = 4.5 to 5.5 V
VCC = 2.5 to 4.5 V
VCC = 1.8 to 2.5 V VCC = 4.5 to 5.5 V Unit
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
CS = GND,
DO = Open,
Other inputs to VCC or
GND


1.5


1.5


1.5


2.0
µA
VIN = GND to VCC

0.1
1.0

0.1 1.0

0.1
1.0

0.1 1.0
µA
VOUT = GND to VCC

0.1
1.0

0.1 1.0

0.1
1.0

0.1 1.0
µA
IOL = 2.1 mA


0.4








0.4
V
IOL = 100 µA


0.1


0.1


0.1


0.1
V
IOH = −400 µA
2.4








2.4


V
IOH = −100 µA
VCC− 0.3


VCC− 0.3





VCC− 0.3


V
IOH = −10 µA
VCC− 0.2


VCC− 0.2


VCC− 0.2


VCC− 0.2


V
Only when write
disable mode
1.5


1.5


1.5


1.5


V
Seiko Instruments Inc.
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ AC Electrical Characteristics
Table 11 Measurement Conditions
0.1 × VCC to 0.9 × VCC
Input pulse voltage
Output reference voltage
Output load
0.5 × VCC
100 pF
Table 12
−40 to +85°C
Item
CS setup time
CS hold time
CS deselect time
Data setup time
Data hold time
Output delay time
Clock frequency*1
SK clock time “L” *1
SK clock time “H” *1
Output disable time
Output enable time
Symbol VCC = 4.5 to 5.5 V
Min. Typ. Max.
tCSS
0.2
—
—
tCSH
0
—
—
tCDS
0.2
—
—
tDS
0.1
—
—
tDH
0.1
—
—
tPD
—
—
0.4
fSK
0
—
2.0
tSKL
0.1
—
—
tSKH
0.1
—
—
tHZ1, tHZ2
0
— 0.15
tSV
0
— 0.15
VCC = 2.5 to 4.5 V
Min. Typ. Max.
0.4
—
—
0
—
—
0.2
—
—
0.2
—
—
0.2
—
—
—
—
0.8
0
—
0.5
0.5
—
—
0.5
—
—
0
—
0.5
0
—
0.5
VCC = 1.8 to 2.5 V
Min. Typ. Max.
1.0
—
—
0
—
—
0.4
—
—
0.4
—
—
0.4
—
—
—
—
2.0
0
— 0.25
1.0
—
—
1.0
—
—
0
—
1.0
0
—
1.0
+85 to +105°C
VCC = 4.5 to 5.5 V Unit
Min. Typ. Max.
0.2


µs
0


µs
0.2


µs
0.1


µs
0.1


µs
0.6


µs
0
1.0 MHz

0.25 

µs
0.25 

µs
0
 0.15 µs
0
 0.15 µs
*1. The clock cycle of the SK clock (frequency: fSK) is 1/fSK µs. This clock cycle is determined by a combination
of several AC characteristics, so be aware that even if the SK clock cycle time is minimized, the clock cycle
(1/fSK) cannot be made to equal tSKL(Min.) + tSKH(Min.).
Table 13
Item
Write time
Symbol
tPR
−40 to +85°C
+85 to +105°C
VCC = 2.7 to 5.5 V
Min.
Typ.
Max.
VCC = 4.5 to 5.5 V
Min.
Typ.
Max.

2.0
4.0
Seiko Instruments Inc.

2.0
4.0
Unit
ms
7
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
tCSS
tCDS
*2
1/fSK
CS
tSKH
tSKL
tCSH
SK
tDS
DI
tPD
tPD
Hi-Z
Hi-Z
tSV
(READ)
DO
tDH
Valid data
Valid data
*1
DO
tDS
tDH
Hi-Z
tHZ1
tHZ2
Hi-Z
(VERIFY)
*1. Indicates high impedance.
*2. 1/fSK is the SK clock cycle. This clock cycle is determined by a combination of several AC
characteristics, so be aware that even if the SK clock cycle time is minimized, the clock cycle
(1/fSK) cannot be made to equal tSKL(Min.) + tSKH(Min.).
Figure 4 Timing Chart
8
Seiko Instruments Inc.
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Operation
All instructions are executed by inputting DI in synchronization with the rising edge of SK after CS goes
high. An instruction set is input in the order of start bit, instruction, address, and data.
Instruction input finishes when CS goes low. A low level must be input to CS between commands during
tCDS. While a low level is being input to CS, the S-93C86B is in standby mode, so the SK and DI inputs are
invalid and no instructions are allowed.
„ Start Bit
A start bit is recognized when the DI pin goes high at the rise of SK after CS goes high. After CS goes high,
a start bit is not recognized even if the SK pulse is input as long as the DI pin is low.
1. Dummy clock
SK clocks input while the DI pin is low before a start bit is input are called dummy clocks. Dummy
clocks are effective when aligning the number of instruction sets (clocks) sent by the CPU with those
required for serial memory operation. For example, when a CPU instruction set is 16 bits, the number
of instruction set clocks can be adjusted by inserting a 3-bit dummy clock for the S-93C86B.
2. Start bit input failure
• When the output status of the DO pin is high during the verify period after a write operation, if a high
level is input to the DI pin at the rising edge of SK, the S-93C86B recognizes that a start bit has been
input. To prevent this failure, input a low level to the DI pin during the verify operation period (refer to
“4.1 Verify operation”).
• When a 3-wire interface is configured by connecting the DI input pin and DO output pin, a period in
which the data output from the CPU and the serial memory collide may be generated, preventing
successful input of the start bit. Take the measures described in “„ 3-Wire Interface (Direct
Connection between DI and DO)”.
Seiko Instruments Inc.
9
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
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 (A9 yyy A1 A0 = 1 yyy 1 1) rolls over to the top address (A9 yyy A1 A0 = 0 yyy 0 0).
CS
SK
DI
DO
1
<1>
2
1
3
0
4
A9
5
A8
Hi-Z
6
A7
7
A6
8
A5
9
A4
10
A3
11
A2
12
A1
13
14
15
16
26
27
28
29
30
31
43
44
45
46
47
A0
0
D15 D14 D13
D2
D1
D0 D15 D14 D13
ADRINC
Figure 5 Read Timing
10
42
Seiko Instruments Inc.
D2
D1
D0 D15 D14 D13
ADRINC
Hi-Z
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
4. Writing (WRITE, ERASE, WRAL, ERAL)
A write operation includes four write instructions: data write (WRITE), data erase (ERASE), chip write
(WRAL), and chip erase (ERAL).
A write instruction (WRITE, ERASE, WRAL, ERAL) starts a write operation to the memory cell when a
low level is input to CS after a specified number of clocks have been input. The SK and DI inputs are
invalid during the write period, so do not input an instruction.
Input an instruction while the output status of the DO pin is high or high impedance (Hi-Z).
A write operation is valid only in program enable mode (refer to “5. Write enable (EWEN) and write
disable (EWDS)”).
4.1 Verify operation
A write operation executed by any instruction is completed within 4 ms (write time tPR: typically 2
ms), so if the completion of the write operation is recognized, the write cycle can be minimized. A
sequential operation to confirm the status of a write operation is called a verify operation.
(1) Operation
After the write operation has started (CS = low), the status of the write operation can be verified
by confirming the output status of the DO pin by inputting a high level to CS again. This
sequence is called a verify operation, and the period that a high level is input to the CS pin after
the write operation has started is called the verify operation period.
The relationship between the output status of the DO pin and the write operation during the
verify operation period is as follows.
• DO pin = low: Writing in progress (busy)
• DO pin = high:
Writing completed (ready)
(2) Operation example
There are two methods to perform a verify operation: Waiting for a change in the output status
of the DO pin while keeping CS high, or suspending the verify operation (CS = low) once and
then performing it again to verify the output status of the DO pin. The latter method allows the
CPU to perform other processing during the wait period, allowing an efficient system to be
designed.
Caution 1. Input a low level to the DI pin during a verify operation.
2. If a high level is input to the DI pin at the rise of SK when the output status of the DO
pin is high, the S-93C86B latches the instruction assuming that a start bit has been
input. In this case, note that the DO pin immediately enters a high-impedance (Hi-Z)
state.
Seiko Instruments Inc.
11
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
4.2 Writing data (WRITE)
To write 16-bit data to a specified address, change CS to high and then input the WRITE
instruction, address, and 16-bit data following the start bit. The write operation starts when CS
goes low. There is no need to set the data to 1 before writing. When the clocks more than the
specified number have been input, the clock pulse monitoring circuit cancels the WRITE instruction.
For details of the clock pulse monitoring circuit, refer to “„ Function to Protect Against Write due
to Erroneous Instruction Recognition”.
tCDS
CS
Standby
Verify
SK
1
DI
<1>
2
0
3
1
4
5
6
7
8
9
10
11
12
13
14
29
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
D15
D0
tSV
Hi-Z
DO
tHZ1
busy
ready
Hi-Z
tPR
Figure 6 Data Write Timing
4.3 Erasing data (ERASE)
To erase 16-bit data at a specified address, set all 16 bits of the data to 1, change CS to high, and
then input the ERASE instruction and address following the start bit. There is no need to input data.
The data erase operation starts when CS goes low. When the clocks more than the specified
number have been input, the clock pulse monitoring circuit cancels the ERASE instruction. For
details of the clock pulse monitoring circuit, refer to “„ Function to Protect Against Write due to
Erroneous Instruction Recognition”.
tCDS
CS
SK
1
2
DI
<1>
1
DO
3
1
4
5
6
7
8
9
10
11
12
A9
A8
A7
A6
A5
A4
A3
A2
A1
Hi-Z
13
A0
tSV
busy
tPR
Figure 7 Data Erase Timing
12
Standby
Verify
Seiko Instruments Inc.
tHZ1
ready
Hi-Z
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
4.4 Writing to chip (WRAL)
To write the same 16-bit data to the entire memory address space, change CS to high, and then
input the WRAL instruction, an address, and 16-bit data following the start bit. Any address can be
input. The write operation starts when CS goes low. There is no need to set the data to 1 before
writing. When the clocks more than the specified number been input, the clock pulse monitoring
circuit cancels the WRAL instruction. For details of the clock pulse monitoring circuit, refer to “„
Function to Protect Against Write due to Erroneous Instruction Recognition”.
tCDS
CS
Standby
Verify
SK
1
2
DI
<1>
0
3
0
4
5
0
6
7
9
11
10
12
13
1
14
29
D15
D0
8Xs
Hi-Z
DO
8
tSV
tHZ1
busy
ready
Hi-Z
tPR
Figure 8 Chip Write Timing
4.5 Erasing chip (ERAL)
To erase the data of the entire memory address space, set all the data to 1, change CS to high, and
then input the ERAL instruction and an address following the start bit. Any address can be input.
There is no need to input data. The chips erase operation starts when CS goes low. When the
clocks more than the specified number have been input, the clock pulse monitoring circuit cancels
the ERAL instruction. For details of the clock pulse monitoring circuit, refer to “„ Function to
Protect Against Write due to Erroneous Instruction Recognition”.
CS
Standby
Verify
tCDS
SK
1
2
3
4
DI
<1>
0
0
1
5
6
7
8
9
10
11
12
13
0
8Xs
tSV
tHZ1
busy
DO
ready
Hi-Z
tPR
Figure 9 Chip Erase Timing
Seiko Instruments Inc.
13
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
5. Write enable (EWEN) and write disable (EWDS)
The EWEN instruction is an instruction that enables a write operation. The status in which a write
operation is enabled is called the program enable mode.
The EWDS instruction is an instruction that disables a write operation. The status in which a write
operation is disabled is called the program disable mode.
After CS goes high, input an instruction in the order of the start bit, EWEN or EWDS instruction, and
address (optional). Each mode becomes valid by inputting a low level to CS after the last address
(optional) has been input.
CS
Standby
SK
1
DI
<1>
2
0
3
4
5
6
7
8
9
10
11
12
13
0
11=EWEN
00=EWDS
8Xs
Figure 10 Write Enable/Disable Timing
(1) Recommendation for write operation disable instruction
It is recommended to implement a design that prevents an incorrect write operation when a write
instruction is erroneously recognized by executing the write operation disable instruction when
executing instructions other than write instruction, and immediately after power-on and before
power off.
14
Seiko Instruments Inc.
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Write Disable Function when Power Supply Voltage is Low
The S-93C86B provides a built-in detector to detect a low power supply voltage and disable writing. When
the power supply voltage is low or at power application, the write instructions (WRITE, ERASE, WRAL, and
ERAL) are cancelled, and the write disable state (EWDS) is automatically set. The detection voltage is 1.75
V typ., the release voltage is 2.05 V typ., and there is a hysteresis of about 0.3 V (refer to Figure 11).
Therefore, when a write operation is performed after the power supply voltage has dropped and then risen
again up to the level at which writing is possible, a write enable instruction (EWEN) must be sent before a
write instruction (WRITE, ERASE, WRAL, or ERAL) is executed.
When the power supply voltage drops during a write operation, the data being written to an address at that
time is not guaranteed.
Hysteresis
About 0.3 V
Power supply voltage
Detection voltage (−VDET)
1.75 V Typ.
Release voltage (+VDET)
2.05 V Typ.
Write instruction cancelled
Write disable state (EWDS) automatically set
Figure 11 Operation when Power Supply Voltage is Low
Seiko Instruments Inc.
15
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Function to Protect Against Write due to Erroneous Instruction Recognition
The S-93C86B provides a built-in clock pulse monitoring circuit which is used to prevent an erroneous write
operation by canceling write instructions (WRITE, ERASE, WRAL, and ERAL) recognized erroneously due
to an erroneous clock count caused by the application of noise pulses or double counting of clocks.
Instructions are cancelled if a clock pulse whose count other than the one specified for each write
instruction (WRITE, ERASE, WRAL, or ERAL) is detected.
<Example> Erroneous recognition of program disable instruction (EWDS) as erase instruction (ERASE)
Example of S-93C86B
Noise pulse
CS
1
2
3
4
5
6
7
8
9
10
11 12
13
SK
DI
Input EWDS instruction
1
0
0
0
0
0
0
0
0
0
0
0
0
Erroneous recognition as
ERASE instruction due to
noise pulse
1 1 10
0
0 00
0
0
0
0
0
0
0
0
In products that do not incorporate a clock pulse monitoring circuit, FFFF is
mistakenly written to address 00h. However the S-93C86B detects the over count
and cancels the instruction without performing a write operation.
Figure 12 Example of Clock Pulse Monitoring Circuit Operation
16
Seiko Instruments Inc.
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ 3-Wire Interface (Direct Connection between DI and DO)
There are two types of serial interface configurations: a 4-wire interface configured using the CS, SK, DI,
and DO pins, and a 3-wire interface that connects the DI input pin and DO output pin.
When the 3-wire interface is employed, a period in which the data output from the CPU and the data output
from the serial memory collide may occur, causing a malfunction. To prevent such a malfunction, connect
the DI and DO pins of the S-93C86B via a resistor (10 to 100 kΩ) so that the data output from the CPU
takes precedence in being input to the DI pin (refer to “Figure 13 Connection of 3-Wire Interface”).
CPU
S-93C86B
SIO
DI
DO
R: 10 to 100 kΩ
Figure 13 Connection of 3-Wire Interface
„ I/O Pins
1. Connection of input pins
All the input pins of the S-93C86B employ a C-MOS structure, so design the equipment so that high
impedance will not be input while the S-93C86B is operating. Especially, deselect the CS input (a low level)
when turning on/off power and during standby. When the CS pin is deselected (a low level), incorrect data
writing will not occur. Connect the CS pin to GND via a resistor (10 to 100 kΩ pull-down resistor). To
prevent malfunction, it is recommended to use equivalent pull-down resistors for pins other than the CS pin.
2. Input and output pin equivalent circuits
The following shows the equivalent circuits of input pins of the S-93C86B. None of the input pins
incorporate pull-up and pull-down elements, so special care must be taken when designing to prevent a
floating status.
Output pins are high-level/low-level/high-impedance tri-state outputs. The TEST pin is disconnected from
the internal circuit by a switching transistor during normal operation. As long as the absolute maximum
rating is satisfied, the TEST pin and internal circuit will never be connected.
Seiko Instruments Inc.
17
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
2.1 Input pin
CS
Figure 14 CS Pin
SK, DI
Figure 15 SK, DI Pin
TEST
Figure 16 TEST Pin
18
Seiko Instruments Inc.
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
2.2 Output pin
Vcc
DO
Figure 17 DO Pin
3. Input pin noise elimination time
The S-93C86B includes a built-in low-pass filter to eliminate noise at the SK, DI, and CS pins. This means
that if the supply voltage is 5.0 V (at room temperature), noise with a pulse width of 20 ns or less can be
eliminated.
Note, therefore, that noise with a pulse width of more than 20 ns will be recognized as a pulse if the voltage
exceeds VIH/VIL.
„ Precaution
● Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
electrostatic protection circuit.
● SII claims no responsibility for any and all disputes arising out of or in connection with any infringement of
the products including this IC upon patents owned by a third party.
Seiko Instruments Inc.
19
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Characteristics (Typical Data)
1. DC Characteristics
1. 1 Current consumption (READ) ICC1
vs. ambient temperature Ta
1. 2 Current consumption (READ) ICC1
vs. ambient temperature Ta
0.4
VCC=3.3 V
fSK=500 kHz
DATA=0101
0.4
ICC1
(mA)
ICC1
(mA)
0.2
0
0.2
VCC=5.5 V
fSK=2 MHz
DATA=0101
-40
0
Ta (°C)
0
85
1. 3 Current consumption (READ) ICC1
vs. ambient temperature Ta
0.4
-40
85
1. 4 Current consumption (READ) ICC1
vs. power supply voltage VCC
VCC=1.8 V
fSK=500 kHz
DATA=0101
0.4
Ta=25°C
fSK=1 MHz, 500 kHz
DATA=0101
ICC1
(mA)
ICC1
(mA)
0
Ta (°C)
1 MHz
0.2
0.2
500 kHz
0
0
-40
0
Ta (°C)
85
2
1. 5 Current consumption (READ) ICC1
vs. power supply voltage VCC
3 4 5
VCC (V)
6
7
1. 6 Current consumption (READ) ICC1
vs. Clock frequency fSK
Ta=25°C
fSK=100 kHz, 10 kHz
DATA=0101
VCC=5.5 V
Ta=25°C
0.4
0.4
ICC1
(mA)
ICC1
(mA)
100 kHz
0.2
0.2
10 kHz
0
20
2
3 4 5
VCC (V)
6
7
0
10
Seiko Instruments Inc.
100 k 10 M
1k
fSK (Hz)
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
1. 7 Current consumption (WRITE) ICC2
vs. ambient temperature Ta
1. 8 Current consumption (WRITE) ICC2
vs. ambient temperature Ta
VCC=5.5 V
VCC=3.3 V
1.0
1.0
ICC2
(mA)
ICC2
(mA)
0.5
0
0.5
-40
0
Ta (°C)
0
85
1. 9 Current consumption (WRITE) ICC2
vs. ambient temperature Ta
-40
0
Ta (°C)
85
1. 10 Current consumption (WRITE) ICC2
vs. power supply voltage VCC
VCC=2.7 V
Ta=25°C
1.0
1.0
ICC2
(mA)
ICC2
(mA)
0.5
0.5
0
-40
0
0
85
2
3
Ta (°C)
1. 11 Current consumption in standby mode ISB
vs. ambient temperature Ta
5 6
7
1. 12 Current consumption in standby mode ISB
vs. power supply voltage VCC
VCC=5.5 V
CS=GND
Ta=25°C
CS=GND
1.0
ISB
(µA)
ISB
(µA)
0.5
0
4
VCC (V)
1.0
0.5
-40
0
Ta (°C)
85
0
Seiko Instruments Inc.
2
3
4 5 6
VCC (V)
7
21
CMOS SERIAL E2PROM
S-93C86B
1. 13 Input leakage current ILI
vs. ambient temperature Ta
Rev.2.2_00
1. 14 Input leakage current ILI
vs. ambient temperature Ta
VCC=5.5 V
CS, SK, DI,
TEST=5.5 V
VCC=5.5 V
CS, SK, DI,
TEST=0 V
1.0
1.0
lLI
(µA)
lLI
(µA)
0.5
0.5
0
-40
0
0
85
Ta (°C)
1. 15 Output leakage current ILO
vs. ambient temperature Ta
85
VCC=5.5 V
DO=5.5 V
1.0
1.0
lLO
(µA)
lLO
(µA)
0.5
0
0.5
-40
0
85
Ta (°C)
1. 17 High-level output voltage VOH
vs. ambient temperature Ta
4.6
VCC=4.5 V
IOH=-400 µA
0
-40
0
85
Ta (°C)
1. 18 High-level output voltage VOH
vs. ambient temperature Ta
2.8
4.4
VOH 2.6
(V)
4.2
2.4
-40
22
0
Ta (°C)
1. 16 Output leakage current ILO
vs. ambient temperature Ta
VCC=5.5 V
DO=0 V
VOH
(V)
-40
0
85
Ta (°C)
VCC=2.7 V
IOH=-100 µA
-40
Seiko Instruments Inc.
0
Ta (°C)
85
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
1. 19 High-level output voltage VOH
vs. ambient temperature Ta
1.9
VOH
(V)
1. 20 Low-level output voltage VOL
vs. ambient temperature Ta
VCC=1.8 V
IOH=-10 µA
0.3
VOL
(V)
1.8
0.2
0.1
1.7
-40
0
Ta (°C)
85
1. 21 Low-level output voltage VOL
vs. ambient temperature Ta
0.03
VCC=4.5 V
IOL=2.1 mA
-40
0
Ta (°C)
85
1. 22 High-level output current IOH
vs. ambient temperature Ta
VCC=4.5 V
VOH=2.4 V
VCC=1.8 V
IOL=100 µA
-20.0
VOL 0.02
(V)
IOH
(mA)
-10.0
0.01
-40
0
Ta (°C)
0
85
1. 23 High-level output current IOH
vs. ambient temperature Ta
-40
0
85
Ta (°C)
1. 24 High-level output current IOH
vs. ambient temperature Ta
VCC=2.7 V
VOH=2.4 V
VCC=1.8 V
VOH=1.6 V
-2
-2
IOH
(mA)
IOH
(mA)
-1
0
-1
-40
0
85
Ta (°C)
0
Seiko Instruments Inc.
-40
0
85
Ta (°C)
23
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
1. 25 Low-level output current IOL
vs. ambient temperature Ta
1. 26 Low-level output current IOL
vs. ambient temperature Ta
VCC=4.5 V
VOL=0.4 V
VCC=1.8 V
VOL=0.1 V
20
1.0
IOL
(mA)
IOL
(mA)
10
0
0.5
-40
0
Ta (°C)
0
85
1. 27 Input inverted voltage VINV
vs. power supply voltage VCC
-40
VCC=5.5 V
CS, SK, DI
1.2
2.0
VINV
(V)
0.6
0
1.0
2
3
4
5
VCC (V)
6
0
7
1. 29 Low supply voltage detection voltage −VDET
vs. ambient temperature Ta
-40
0
Ta (°C)
85
1. 30 Low supply voltage release voltage +VDET
vs. ambient temperature Ta
2.0
2.0
-VDET
(V)
+VDET
(V)
1.0
0
24
85
1. 28 Input inverted voltage VINV
vs. ambient temperature Ta
Ta=25°C
CS, SK, DI
VINV
(V)
0
Ta (°C)
1.0
-40
0
Ta (°C)
85
0
Seiko Instruments Inc.
-40
0
Ta (°C)
85
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
2. AC Characteristics
2. 1 Maximum operating frequency fMAX.
vs. power supply voltage VCC
2. 2 Write time tPR
vs. power supply voltage VCC
Ta=25°C
Ta=25°C
10M
4
fMAX. 1M
(Hz)
100k
tPR
(ms)
2
10k
1
2
1
3 4 5 6
VCC (V)
2. 3 Write time tPR
vs. ambient temperature Ta
6
4
tPR
(ms) 4
2
2
-40
0
85
Ta (°C)
2. 5 Write time tPR
vs. ambient temperature Ta
VCC=4.5 V
6
0.3
4
tPD
(µs) 0.2
2
0.1
-40
0
85
Ta (°C)
2. 6 Data output delay time tPD
vs. ambient temperature Ta
VCC=2.7 V
tPR
(ms)
7
VCC=3.3 V
6
-40
4 5 6
VCC (V)
2. 4 Write time tPR
vs. ambient temperature Ta
VCC=5.5 V
tPR
(ms)
2 3
-40
0
85
Ta (°C)
Seiko Instruments Inc.
0
Ta (°C)
85
25
CMOS SERIAL E2PROM
S-93C86B
2. 7 Data output delay time tPD
vs. ambient temperature Ta
Rev.2.2_00
2. 8 Data output delay time tPD
vs. ambient temperature Ta
VCC=2.7 V
VCC=1.8 V
0.6
1.5
tPD
(µs) 0.4
tPD
(µs) 1.0
0.2
0.5
-40
26
0
Ta (°C)
85
-40
Seiko Instruments Inc.
0
Ta (°C)
85
CMOS SERIAL E2PROM
S-93C86B
Rev.2.2_00
„ Product Name Structure
S-93C86B
D4
x -
xxxx
G
Package name (abbreviation) and IC packing specifications
J8T1 : 8-Pin SOP(JEDEC), Tape
J8T2 : 8-Pin SOP(JEDEC), Tape, +105°C Max. supported
T8T1 : 8-Pin TSSOP, Tape
T8T2 : 8-Pin TSSOP, Tape, +105°C Max. supported
Operation temperature
I : −40 to +85°C
H : −40 to +105°C
Fixed
Product name
S-93C86B: 16 K-bit
Seiko Instruments Inc.
27
5.02±0.2
8
5
1
4
1.27
0.20±0.05
0.4±0.05
No. FJ008-A-P-SD-2.1
TITLE
No.
SOP8J-D-PKG Dimensions
FJ008-A-P-SD-2.1
SCALE
UNIT
mm
Seiko Instruments Inc.
4.0±0.1(10 pitches:40.0±0.2)
2.0±0.05
ø1.55±0.05
0.3±0.05
ø2.0±0.05
8.0±0.1
2.1±0.1
5°max.
6.7±0.1
1
8
4
5
Feed direction
No. FJ008-D-C-SD-1.1
TITLE
SOP8J-D-Carrier Tape
No.
FJ008-D-C-SD-1.1
SCALE
UNIT
mm
Seiko Instruments Inc.
60°
2±0.5
13.5±0.5
Enlarged drawing in the central part
ø21±0.8
2±0.5
ø13±0.2
No. FJ008-D-R-SD-1.1
TITLE
SOP8J-D-Reel
No.
FJ008-D-R-SD-1.1
SCALE
UNIT
QTY.
mm
Seiko Instruments Inc.
2,000
+0.3
3.00 -0.2
8
5
1
4
0.17±0.05
0.2±0.1
0.65
No. FT008-A-P-SD-1.1
TITLE
TSSOP8-E-PKG Dimensions
FT008-A-P-SD-1.1
No.
SCALE
UNIT
mm
Seiko Instruments Inc.
4.0±0.1
2.0±0.05
ø1.55±0.05
0.3±0.05
+0.1
8.0±0.1
ø1.55 -0.05
(4.4)
+0.4
6.6 -0.2
1
8
4
5
Feed direction
No. FT008-E-C-SD-1.0
TITLE
TSSOP8-E-Carrier Tape
FT008-E-C-SD-1.0
No.
SCALE
UNIT
mm
Seiko Instruments Inc.
13.4±1.0
17.5±1.0
Enlarged drawing in the central part
ø21±0.8
2±0.5
ø13±0.5
No. FT008-E-R-SD-1.0
TSSOP8-E-Reel
TITLE
No.
FT008-E-R-SD-1.0
SCALE
QTY.
UNIT
mm
Seiko Instruments Inc.
3,000
•
•
•
•
•
•
The information described herein is subject to change without notice.
Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein
whose related industrial properties, patents, or other rights belong to third parties. The application circuit
examples explain typical applications of the products, and do not guarantee the success of any specific
mass-production design.
When the products described herein are regulated products subject to the Wassenaar Arrangement or other
agreements, they may not be exported without authorization from the appropriate governmental authority.
Use of the information described herein for other purposes and/or reproduction or copying without the
express permission of Seiko Instruments Inc. is strictly prohibited.
The products described herein cannot be used as part of any device or equipment affecting the human
body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus
installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc.
Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the
failure or malfunction of semiconductor products may occur. The user of these products should therefore
give thorough consideration to safety design, including redundancy, fire-prevention measures, and
malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.