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PDF S-25C320A Data sheet ( Hoja de datos )
| Número de pieza | S-25C320A | |
| Descripción | SPI SERIAL E2PROM | |
| Fabricantes | Seiko Instruments | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de S-25C320A (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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S-25C320A/640A
www.sii-ic.com
© SII Semiconductor Corporation, 2009-2015
SPI SERIAL E2PROM
Rev.4.2_02_H
The S-25C320A/640A is a SPI serial E2PROM which operates at high speed, with low current consumption and the wide
range operation. The S-25C320A/640A has the capacity of 32 K-bit and 64 K-bit, and the organization is 4096 words × 8-bit,
8192 words × 8-bit. Page write and sequential read are available.
Features
• Operating voltage range:
Read 1.6 V to 5.5 V
Write 1.7 V to 5.5 V
• Operation frequency
• Write time:
• SPI mode (0, 0) and (1, 1)
• Page write:
• Sequential read
• Write protect:
Protect area:
5.0 MHz (VCC = 2.5 V to 5.5 V)
5.0 ms max.
32 bytes / page
Software, Hardware
25%, 50%, 100%
• Monitors Write to the memory by a status register
• Function to prevent malfunction by monitoring clock pulse
• Write protect function during the low power supply voltage
• CMOS schmitt input ( CS , SCK, SI, WP , HOLD )
• Endurance:
• Data retention:
• Memory capacity:
106cycles / word*1 (Ta = +25°C)
100 years (Ta = +25°C)
S-25C320A
32 K-bit
S-25C640A
64 K-bit
• Initial delivery state:
• Operation temperature range:
• Lead-free (Sn 100%), halogen-free*2
FFh, SRWD = 0, BP1 = 0, BP0 = 0
Ta = −40°C to +85°C
*1. For each address (Word: 8-bit)
*2. Refer to “ Product Name Structure” for details.
Packages
• 8-Pin SOP (JEDEC)
• 8-Pin TSSOP
• TMSOP-8
• SNT-8A
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
Semiconductor Corporation is indispensable.
1
1 page  
Rev.4.2_02_H
SPI SERIAL E2PROM
S-25C320A/640A
Absolute Maximum Ratings
Item
Power supply voltage
Input voltage
Output voltage
Operation ambient temperature
Storage temperature
Symbol
VCC
VIN
VOUT
Topr
Tstg
Table 5
Absolute Maximum Rating
−0.3 to + 6.5
−0.3 to + 6.5
−0.3 to VCC + 0.3
−40 to +85
−65 to +150
Unit
V
V
V
°C
°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
Item
Power supply voltage
High level input voltage
Low level input voltage
Table 6
Symbol
Condition
VCC
Read Operation
Write Operation
VIH VCC = 1.6 V to 5.5 V
VIL VCC = 1.6 V to 5.5 V
Ta = −40°C to +85°C
Min. Max.
1.6 5.5
1.7 5.5
0.7 × VCC
−0.3
VCC + 1.0
0.3 × VCC
Unit
V
V
V
V
Pin Capacitance
Item
Input capacitance
Output capacitance
Symbol
Table 7
Condition
(Ta = +25 °C, f = 1.0 MHz, VCC = 5.0 V)
Min.
Max.
Unit
CIN
COUT
VIN = 0 V ( CS , SCK, SI, WP , HOLD )
VOUT = 0 V (SO)
−
−
8 pF
10 pF
Endurance
Item Symbol
Endurance
NW
*1. For each address (Word: 8-bit)
Table 8
Operation Ambient Temperature
Ta = +25°C
Min.
106
Max.
−
Unit
cycles / word*1
Data Retention
Item
Data retention
Symbol
−
Table 9
Operation Ambient Temperature
Ta = +25°C
Min.
100
Max.
−
Unit
year
5
5 Page 
Rev.4.2_02_H
SPI SERIAL E2PROM
S-25C320A/640A
Instruction Set
Table 16 is the list of instruction for the S-25C320A/640A. The instruction is able to be input by changing the CS pin “H”
to “L”. Input the instruction in the MSB first. Each instruction code is organized with 1-byte as shown below. If the
S-25C320A/640A receives any invalid instruction code, the device goes in the non-select status.
Table 16 Instruction Set
Instruction Code
Address
Data
Instruction
Operation
SCK Input Clock
1 to 8
SCK Input Clock SCK Input Clock SCK Input Clock
9 to 16
17 to 24
25 to 32
WREN
WRDI
RDSR
Write enable
Write disable
Read the status register
0000 0110
0000 0100
0000 0101
−
−
b7 to b0 output *1
−
−
−
−
−
−
WRSR
READ
Write in the status register
Read memory data
0000 0001
0000 0011
b7 to b0 input
A15 to A8 *2
−
A7 to A0
−
D7 to D0 output *3
WRITE
Write memory data
0000 0010
A15 to A8 *2
A7 to A0
D7 to D0 input
*1. Sequential data reading is possible.
*2. In the S-25C320A, the higher addresses A15 to A12 = Don’t care.
In the S-25C640A, the higher addresses A15 to A13 = Don’t care.
*3. After outputting data in the specified address, data in the following address is output.
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet S-25C320A.PDF ] | |
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