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Número de pieza | S-24C256C | |
Descripción | 2-WIRE SERIAL E2PROM | |
Fabricantes | Seiko | |
Logotipo | ||
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No Preview Available ! S-24C256C
www.sii-ic.com
© SII Semiconductor Corporation, 2010-2013
2-WIRE SERIAL E2PROM
Rev.2.0_02_S
The S-24C256C is a 2-wire, low current consumption and wide range operation serial E2PROM. The S-24C256C has the
capacity of 256 K-bit, and the organization is 32768 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
• Page write:
64 bytes / page
• Sequential read
• Operation frequency:
1.0 MHz (VCC = 2.5 V to 5.5 V)
400 kHz (VCC = 1.6 V to 2.5 V)
• Write time:
5.0 ms max.
• Noise suppression:
Schmitt trigger and noise filter on input pins (SCL, SDA)
• Write protect function during the low power supply voltage
• Endurance:
106cycles / unit*1 (Ta = +25°C)
• Data retention:
100 years (Ta = +25°C)
• Memory capacity:
256 K-bit
• Write protect:
100%
• Initial shipment data:
FFh
• Lead-free (Sn 100%), halogen-free*2
*1. For each unit (unit: the 4 bytes with the same address of W14 to W2)
*2. Refer to “ Product Name Structure” for details.
Packages
• 8-Pin SOP (JEDEC)
• 8-Pin TSSOP
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.2.0_02_S
2-WIRE SERIAL E2PROM
S-24C256C
DC Electrical Characteristics
Item
Current consumption (READ)
Symbol
ICC1
Table 8
Condition
−
Ta = −40°C to +85°C
VCC = 2.5 V to 5.5 V
fSCL = 1.0 MHz
Min. Max.
VCC = 1.6 V to 2.5 V
fSCL = 400 kHz
Min. Max.
− 2.0 − 1.5
Unit
mA
Item
Current consumption (WRITE)
Symbol
ICC2
Table 9
Condition
−
Ta = −40°C to +85°C
VCC = 2.5 V to 5.5 V
fSCL = 1.0 MHz
VCC = 1.7 V to 2.5 V
fSCL = 400 kHz
Min. Max. Min. Max.
− 4.0 − 4.0
Unit
mA
Table 10
Item
Symbol
Condition
Standby current consumption ISB
Input leakage current 1
ILI1
Input leakage current 2
ILI2
Output leakage current
Input current 1
Input current 2
Input Impedance 1
Input Impedance 2
ILO
IIL
IIH
ZIL
ZIH
Low level output voltage
VOL
VIN = VCC or GND
SCL, SDA,
VIN = GND to VCC
A0, A1, A2
VIN > 0.7 × VCC
At standby mode
SDA
VOUT = GND to VCC
WP
VIN < 0.3 × VCC
WP
VIN > 0.7 × VCC
WP
VIN = 0.3 × VCC
WP
VIN = 0.7 × VCC
IOL = 3.2 mA
IOL = 1.5 mA
IOL = 0.7 mA
Ta = −40°C to +85°C
VCC = 2.5 V to 5.5 V
VCC = 1.6 V to 2.5 V
Min. Max. Min. Max.
− 4.0 − 3.0
− 1.0 − 1.0
− 1.0 − 1.0
− 1.0 − 1.0
− 50.0 − 50.0
− 2.0 − 2.0
30 − 30 −
500 − 500 −
− 0.4 −
−
− 0.3 − 0.3
− 0.2 − 0.2
Unit
μA
μA
μA
μA
μA
μA
kΩ
kΩ
V
V
V
5
5 Page Rev.2.0_02_S
2-WIRE SERIAL E2PROM
S-24C256C
5. Device addressing
To start communication, the master device on the system generates a start condition to the bus line. Next, the master
device sends 7-bit device address and a 1-bit read / write instruction code on to the SDA bus.
The upper 4 bits of the device address are the “Device Code”, and are fixed to “1010”.
In the S-24C256C, successive 3 bits are the “Slave Address”. These 3 bits are used to identify a device on the
system bus and is compared with the predetermined value which is defined by the address input pins (A2, A1, A0).
When the comparison result matches, the slave device responds with an acknowlede during the 9th clock cycle.
Device Code
1010
MSB
Slave
Address
A2 A1 A0 R / W
LSB
Figure 11 Device Address
11
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet S-24C256C.PDF ] |
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