الصفحة الرئيسية > الدوائر المتكاملة الدوائر المتكاملة > M93C66-WDW6TP

M93C66-WDW6TP

4 Kbit MICROWIRE EEPROM, x8/x16, 2.5-5.5V, 2MHz, 4M cycles, 200yr retention, TSSOP-8

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جزء الشركة المصنعة ： جزء الشركة المصنعة

M93C66-WDW6TP

الحزمة ： الحزمة

TSSOP-8L (3.0 x 4.4 x 1.0 mm)

العلامة التجارية ： العلامة التجارية

فئات المنتجات:：فئات المنتجات

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الوصف

نظرة عامة على المنتج

The M93C66-WDW6TP from STMicroelectronics is a 4 Kbit MICROWIRE serial access EEPROM with dual organization (x8 or x16). It operates from 2.5V to 5.5V with clock frequencies up to 2 MHz. The device offers over 4 million write cycles and 200-year data retention, packaged in a TSSOP-8L footprint with 10-year longevity commitment.

المواصفات الرئيسية

Memory Size	4 Kbit (512 bytes x8 / 256 words x16)
الواجهة	MICROWIRE (3-wire serial)
جهد الإمداد	2.5V to 5.5V (M93Cx6-W)
Maximum Clock Frequency	2 MHz
Write Cycle Time	5 ms (maximum)
Write Endurance	4 million cycles at 25°C
الاحتفاظ بالبيانات	200 years
درجة حرارة التشغيل	-40 درجة مئوية إلى +85 درجة مئوية
ESD Protection	4000V (Human Body Model)
الحزمة	TSSOP-8L
Organization	Byte (x8) or Word (x16) selectable

الميزات

Industry-standard MICROWIRE bus compatible
Dual organization: byte (x8) or word (x16) via ORG pin
Sequential read operation for fast data access
READY/BUSY signal during programming
Programming instructions for byte, word, or entire memory
Enhanced ESD and latch-up protection (4000V HBM)
Power-on reset circuit prevents inadvertent writes
10-year longevity commitment from STMicroelectronics
Ecopack2 (RoHS compliant)

التطبيقات

Industrial motor control boards for calibration data storage
Automotive diagnostic tool parameter storage
Embedded system configuration memory
Consumer electronics settings retention
Medical device calibration data
Networking equipment MAC address storage

مقدمة المنتج:M93C66-WDW6TP مقدمة المنتج

The M93C66-WDW6TP is a 4 Kbit electrically erasable programmable read-only memory (EEPROM) from STMicroelectronics, accessed through the MICROWIRE bus protocol. The memory array can be configured as 512 bytes (x8) or 256 words (x16) via the ORG pin. The M93Cx6-W series operates from 2.5V to 5.5V with clock frequencies up to 2 MHz. The device supports programming instructions that operate on individual bytes, words, or the entire memory (EWEN/EWDS). A sequential read mode enables fast data retrieval. With over 4 million write cycles and 200-year data retention, the M93C66 is ideal for storing small configuration parameters, calibration data, and factory settings in industrial and automotive applications.

مبدأ العمل:M93C66-WDW6TP مبدأ العمل

The M93C66-WDW6TP operates through three key subsystems:

1. Memory Array: The 4 Kbit EEPROM array is organized as 512 x 8 bits (byte mode) or 256 x 16 bits (word mode), selectable via the ORG pin. Each cell uses floating-gate transistor technology to store charge representing data bits. The cells retain data for over 200 years without power.

2. MICROWIRE Interface: Communication uses a 3-wire serial bus: Chip Select (S), Serial Clock (C), and Serial Data Input (D). A fourth line, Serial Data Output (Q), provides read data and READY/BUSY status. Instructions (READ, WRITE, ERASE, EWEN, EWDS, ERAL, WRAL) are sent as opcode + address sequences clocked on the C line.

3. Programming Control: Write and erase operations use Fowler-Nordheim tunneling to modify cell charge. During the 5 ms write cycle, the Q pin outputs a READY/BUSY signal. A power-on reset (POR) circuit prevents inadvertent writes during power-up by keeping the device in a disabled state until VCC reaches a safe threshold. The Write Enable (EWEN) instruction must be issued before any write operation.

وصف الدبوس:M93C66-WDW6TP تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوظيفة
1	S	المدخلات	Chip Select (active high)
2	D	المدخلات	Serial Data Input
3	Q	المخرجات	Serial Data Output / READY-BUSY
4	VSS	الطاقة	أرضي
5	ORG	المدخلات	Organization select: VSS = x8, VDD = x16
6	DU	-	Don’t use (leave unconnected or tie to VSS/VDD)
7	C	المدخلات	Serial Clock
8	VCC	الطاقة	Supply voltage (2.5–5.5V)

Application Scenarios:In which products and applications isM93C66-WDW6TP مستعمل

Industrial motor control: Storage of PID parameters, encoder offsets, and factory calibration values with 200-year retention
Automotive diagnostic tools: Vehicle-specific parameter tables and DTC lookup data with MICROWIRE interface compatibility
Embedded systems: Boot configuration, serial number, and MAC address storage with byte/word organization flexibility
Consumer electronics: User preference and channel settings retention in audio/video equipment
Medical devices: Calibration coefficients and device identification with 4 million write cycle endurance

Alternative Models:What chips are recommended as replacements for M93C66-WDW6TP

الشركة المصنعة	رقم الجزء	الحزمة	الملاحظات
STMicroelectronics	M93C66-WMN6TP	SO8	Same device, SOIC package
STMicroelectronics	M93C56-WDW6TP	TSSOP-8L	2 Kbit version, same pinout
STMicroelectronics	M93C76-WDW6TP	TSSOP-8L	8 Kbit version, same pinout
الرقاقة الدقيقة	93LC66B-I/SN	SOIC-8	4 Kbit, MICROWIRE, x16 org
أونسمي	CAT93C66VI-G	SOIC-8	4 Kbit, 3-wire serial EEPROM
الرقاقة الدقيقة	93AA66B-I/ST	TSSOP-8	4 Kbit, 1.8V version