引脚定义与内部结构
| 引脚 | 符号 | 名称 |
|---|---|---|
| 1 | CS | |
| 2 | SK | |
| 3 | D1 | |
| 4 | D0 | |
| 5 | GND | |
| 6 | ORG | |
| 7 | NC | |
| 8 | VCC |
数据来源：原厂规格书引脚图
关键参数速览
- 电源电压 VCC
- 5.5
产品特点 Features
- Low-voltage and Standard-voltage Operation
- 1.8 (V = 1.8V to 5.5V)
- User-selectable Internal Organization
- 1K: 128 x 8 or 64 x 16
- Three-wire Serial Interface
- 2 MHz Clock Rate (5V)
- Self-timed Write Cycle (5 ms max)
- Headquarters International
- Atmel Corporation Atmel Asia Atmel Europe Atmel Japan
- 2325 Orchard Parkway Room 1219 Le Krebs 9F, Tonetsu Shinkawa Bldg.
- San Jose, CA 95131 Chinachem Golden Plaza 8, Rue Jean-Pierre Timbaud 1-24-8 Shinkawa
- USA 77 Mody Road Tsimshatsui BP 309 Chuo-ku, Tokyo 104-0033
- Product Contact
- Web Site Technical Support Sales Contact
- Literature Requests
- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY
绝对最大额定值 Absolute Maximum Ratings（TA = 25°C）
超过下表数值可能造成器件永久损坏，设计时请留余量。
| 符号 | 参数 | 测试条件 | 最小 | 典型 | 最大 | 单位 |
|---|---|---|---|---|---|---|
| AT93C46D | ||||||
| Applicable | over recommended | operating range from T = 25°C, | f = 1.0 MHz, V = | +1.8V (unless | otherwise | noted) |
| C | Output Capacitance | (DO) | 5 | pF | V = 0V | |
| C | Input Capacitance | (CS, SK, DI) | 5 | pF | V = 0V | |
| V | Supply Voltage | 1.8 | 5.5 | V | ||
| V | Supply Voltage | 2.7 | 5.5 | V | ||
| V | Supply Voltage | 4.5 | 5.5 | V | ||
| READ at | 1.0 MHz | 0.5 | 2.0 | mA | ||
| I | Supply Current | V = 5.0V | ||||
| WRITE | at 1.0 MHz | 0.5 | 2.0 | mA | ||
| I | Standby Current | V = 1.8V CS = 0V | 0.4 | 1.0 | µA | |
| I | Standby Current | V = 2.7V CS = 0V | 6.0 | 10.0 | µA | |
| I | Standby Current | V = 5.0V CS = 0V | 10.0 | 15.0 | µA | |
| I | Input Leakage | V = 0V to V | 0.1 | 1.0 | µA | |
| I | Output Leakage | V = 0V to V | 0.1 | 1.0 | µA | |
| V (1) | Input Low Voltage | −0.6 | 0.8 | |||
| V IH1 | Input High Voltage | 2.0 | V + 1 CC | |||
| V (1) IL2 | Input Low Voltage | −0.6 | V x 0.3 CC | |||
| V (1) | Input High Voltage | CC | V x 0.7 | V + 1 | ||
| IH2 | CC | CC | ||||
| V | Output Low | Voltage I = 2.1 | mA | 0.4 | V | |
| V | Output High | Voltage I = −0.4 | mA 2.4 | V | ||
| V | Output Low | Voltage I = 0.15 | mA | 0.2 | V | |
| V | Output High | Voltage I = −100 | µA V – 0.2 | V | ||
| OH2 | OH | CC | ||||
| Applicable over | recommended | operating range from T = −40°C | to + 85°C, V = | +2.7V to +5.5V, | ||
| 4.5V ≤ V ≤ 5.5V | 0 | 2 | ||||
| f | 2.7V ≤ V ≤ 5.5V | 0 | 1 | MHz | ||
| 1.8V ≤ V ≤ 5.5V | 0 | 0.25 | ||||
| t | SK High Time | 2.7V ≤ V ≤ 5.5V | 250 | ns | ||
| t | SK Low Time | 2.7V ≤ V ≤ 5.5V | 250 | ns | ||
| t | 2.7V ≤ V ≤ 5.5V | 250 | ns | |||
| t | CS Setup Time | Relative to SK 2.7V ≤ V | ≤ 5.5V 50 | ns | ||
| t | DI Setup Time | Relative to SK 2.7V ≤ V | ≤ 5.5V 100 | ns | ||
| t | CS Hold Time | Relative to SK | 0 | ns | ||
| t | DI Hold Time | Relative to SK 2.7V ≤ V | ≤ 5.5V 100 | ns | ||
| t PD1 | Output Delay to | “1” AC Test 2.7V ≤ V | ≤ 5.5V CC | 250 | ns | |
| t PD0 | Output Delay to | “0” AC Test 2.7V ≤ V | ≤ 5.5V CC | 250 | ns | |
| t | CS to Status | Valid AC Test 2.7V ≤ V | ≤ 5.5V | 250 | ns | |
| CS to DO in High | AC Test | CC | ||||
| t | 2.7V ≤ V | ≤ 5.5V | 150 | ns | ||
| DF | Impedance | CS = V | CC | |||
| IL 1.8V ≤ V | ≤ 5.5V | 400 | ||||
| t | Write Cycle Time | 1.8V ≤ V | ≤ 5.5V 0.1 | 3 | 5 | ms |
| Endurance | 5.0V, 25°C | 1M | Write Cycles |
数据来源：原厂规格书