24AA256
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the 24AA256 does
The 24AA256/24LC256/24FC256 are 256Kbit two-wire serial EEPROMs operating on a single supply from 1.7V to 5.5V. These devices feature a maximum clock frequency of 1MHz, a standby current of 1µA, and a write current of 3mA. They support Schmitt trigger inputs, page writes up to 64 bytes, and hardware write protection. The parts are available in industrial, extended, and automotive temperature ranges. They are designed for low-power applications such as personal communications or data acquisition systems requiring reliable non-volatile memory storage.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 3 mA | Vcc = 5.5V; DC CHARACTERISTICS | Microchip datasheet, p. 3 — TABLE 1-1: DC CHARACTERISTICS |
| supply voltage range | 1.7 V | — | 5.5 V | Microchip datasheet, p. 1 — Device Selection Table | |
| operating temperature | -40 °C | — | 125 °C | Microchip datasheet, p. 1 — Device Selection Table | |
| clock frequency | — | — | 100 kHz | 1.7V ≤ Vcc < 2.5V; fclk; AC CHARACTERISTICS | Microchip datasheet, p. 4 — TABLE 1-2: AC CHARACTERISTICS |
| standby current | — | — | 1 µA | SDA = SCL = Vcc = 3.6VA0, A1, A2, WP = Vss, I-Temp.; DC CHARACTERISTICS | Microchip datasheet, p. 3 — TABLE 1-1: DC CHARACTERISTICS |
| rise time | — | — | 1 µs | 1.7V ≤ Vcc < 2.5V (Note 1); tr; AC CHARACTERISTICS | Microchip datasheet, p. 4 — TABLE 1-2: AC CHARACTERISTICS |
| fall time | — | — | 250 ns | All except 24FC256(Note 1); AC CHARACTERISTICS | Microchip datasheet, p. 5 — TABLE 1-2: AC CHARACTERISTICS |
| memory size | — | 256 kbit | — | Microchip datasheet, p. 1 | |
| program erase cycles | 1 Mcycle | — | — | 25°C, 5.5V, Page mode(Note 4); AC CHARACTERISTICS | Microchip datasheet, p. 5 — TABLE 1-2: AC CHARACTERISTICS |
| page program time | — | 5 ms | — | Microchip datasheet, p. 1 | |
| output voltage low | — | — | 400 mV | IOl = 3.0 mA @ Vcc = 4.5VIOl = 2.1 mA @ Vcc = 2.5V; DC CHARACTERISTICS | Microchip datasheet, p. 3 — TABLE 1-1: DC CHARACTERISTICS |
Closest matches to 24AA256
Frequently asked questions
What is the clock frequency (fclk) under AC CHARACTERISTICS when 1.7V ≤ Vcc < 2.5V?
The clock frequency is 100 kHz.
What is the fall time for the 24AA256 under AC CHARACTERISTICS conditions, excluding the 24FC256?
The fall time is 250 ns.
What is the memory size of the 24AA256?
The memory size is 256 kbit.
What is the maximum operating temperature for the 24AA256?
The operating temperature is 125 °C.
What is the maximum output voltage low (V_OL) for the 24AA256 under DC CHARACTERISTICS conditions?
The output voltage low is 400 mV when IOl = 3.0 mA @ Vcc = 4.5V or IOl = 2.1 mA @ Vcc = 2.5V.
What is the page program time for the 24AA256?
The page program time is 5 ms.
What is the program erase cycle endurance for the 24AA256 under 25°C, 5.5V, Page mode (Note 4) AC CHARACTERISTICS?
The program erase cycle endurance is 1 Mcycle.
What is the quiescent current when Vcc = 5.5V under DC CHARACTERISTICS?
The quiescent current is 3 mA.
What is the rise time (tr) under AC CHARACTERISTICS when 1.7V ≤ Vcc < 2.5V (Note 1)?
The rise time is 1 µs.
What is the standby current for the 24AA256 under DC CHARACTERISTICS conditions?
The standby current is 1 µA when SDA = SCL = Vcc = 3.6V, A0, A1, A2, WP = Vss, and at operating temperature.
What is the maximum supply voltage for the 24AA256?
The supply voltage range is 5.5 V.