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AT25F1024のメーカーはATMEL Corporationです、この部品の機能は「SPI Serial Memory」です。 |
部品番号 | AT25F1024 |
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部品説明 | SPI Serial Memory | ||
メーカ | ATMEL Corporation | ||
ロゴ | |||
このページの下部にプレビューとAT25F1024ダウンロード(pdfファイル)リンクがあります。 Total 18 pages
Features
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
• 20 MHz Clock Rate
• Byte Mode and 256-byte Page Mode for Program Operations
• Sector Architecture:
– Two Sectors with 32K Bytes Each (512K)
– Four Sectors with 32K Bytes Each (1M)
– 128 Pages per Sector
• Product Identification Mode
• Low-voltage Operation
– 2.7 (VCC = 2.7V to 3.6V)
• Sector Write Protection
• Write Protect (WP) Pin and Write Disable Instructions for
both Hardware and Software Data Protection
• Self-timed Program Cycle (60 µs/Byte Typical)
• Self-timed Sector Erase Cycle (1 second/Sector Typical)
• Single Cycle Reprogramming (Erase and Program) for Status Register
• High Reliability
– Endurance: 10,000 Write Cycles Typical
• Lead-free Devices Available
• 8-lead JEDEC SOIC and 8-lead SAP Packages
Description
The AT25F512/1024 provides 524,288/1,048,576 bits of serial reprogrammable Flash
memory organized as 65,536/131,072 words of 8 bits each. The device is optimized
for use in many industrial and commercial applications where low-power and low-volt-
age operation are essential. The AT25F512/1024 is available in a space-saving 8-lead
JEDEC SOIC and 8-lead SAP packages.
The AT25F512/1024 is enabled through the Chip Select pin (CS) and accessed via a
3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and
Serial Clock (SCK). All write cycles are completely self-timed.
BLOCK WRITE protection for top 1/4, top 1/2 or the entire memory array (1M) or
entire memory array (512K) is enabled by programming the status register. Separate
write enable and write disable instructions are provided for additional data protection.
Hardware data protection is provided via the WP pin to protect against inadvertent
write attempts to the status register. The HOLD pin may be used to suspend any serial
communication without resetting the serial sequence.
Pin Configurations
8-lead SOIC
Pin Name
CS
SCK
SI
Function
Chip Select
Serial Data Clock
Serial Data Input
CS
SO
WP
GND
1
2
3
4
8 VCC
7 HOLD
6 SCK
5 SI
SO Serial Data Output
8-lead SAP
GND
VCC
WP
HOLD
Ground
Power Supply
Write Protect
Suspends Serial Input
VCC 8
HOLD 7
SCK 6
SI 5
1 CS
2 SO
3 WP
4 GND
Bottom View
SPI Serial
Memory
512K (65,536 x 8)
1M (131,072 x 8)
AT25F512
AT25F1024
Rev. 1440P–SEEPR–6/04
1
1 Page AT25F512/1024
Pin Capacitance(1)
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +3.6V (unless otherwise noted).
Symbol Test Conditions
Max
Units
Conditions
COUT
CIN
Note:
Output Capacitance (SO)
Input Capacitance (CS, SCK, SI, WP, HOLD)
1. This parameter is characterized and is not 100% tested.
8 pF VOUT = 0V
6 pF VIN = 0V
DC Characteristics
Applicable over recommended operating range from: TAI = -40°C to +85°C, VCC = +2.7V to +3.6V,
TAC = 0°C to +70°C, VCC = +2.7V to +3.6V (unless otherwise noted).
Symbol Parameter
Test Condition
Min Typ
Max
VCC
ICC1
ICC2
ISB
IIL
IOL
VIL(1)
VIH(1)
VOL
VOH
Note:
Supply Voltage
Supply Current
Supply Current
Standby Current
Input Leakage
Output Leakage
Input Low Voltage
VCC = 3.6V at 20 MHz, SO = Open Read
VCC = 3.6V at 20 MHz, SO = Open Write
VCC = 2.7V, CS = VCC
VIN = 0V to VCC
VIN = 0V to VCC, TAC = 0°C to 70°C
Input High Voltage
Output Low Voltage
Output High Voltage
2.7V ≤ VCC ≤ 3.6V
IOL = 0.15 mA
IOH = -100 µA
1. VIL and VIH max are reference only and are not tested.
2.7
-3.0
-3.0
-0.6
VCC x 0.7
VCC - 0.2
10.0
15.0
2.0
3.6
15.0
30.0
10.0
3.0
3.0
VCC x 0.3
VCC + 0.5
0.2
Units
V
mA
mA
µA
µA
µA
V
V
V
V
1440P–SEEPR–6/04
3
3Pages SPI Serial Interface
MASTER:
MICROCONTROLLER
DATA OUT (MOSI)
DATA IN (MISO)
SERIAL CLOCK (SPI CK)
SS0
SS1
SS2
SS3
SLAVE:
AT25F512/1024
SI
SO
SCK
CS
SI
SO
SCK
CS
SI
SO
SCK
CS
SI
SO
SCK
CS
6 AT25F512/1024
1440P–SEEPR–6/04
6 Page | |||
ページ | 合計 : 18 ページ | ||
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PDF ダウンロード | [ AT25F1024 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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