AT24C64D
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 AT24C64D does
The AT24C64D is a 64-Kbit I2C-compatible serial EEPROM organized as 8,192 words of eight bits each. It operates from 1.7V to 5.5V and supports clock speeds up to 1MHz at 2.5V or higher. The device features 1,000,000 write cycle endurance and 100-year data retention. Available in SOIC, TSSOP, UDFN, XDFN, WLCSP, and VFBGA packages, it supports cascading up to eight devices on a single bus. Engineers typically use this component in industrial and commercial applications requiring low-power and low-voltage operation. The part includes Schmitt Trigger inputs for noise suppression and a Write Protect pin for hardware security.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 400 µA | 1 mA | VCC = 5.0V; Read at 400kHz; icc1; DC Characteristics | Microchip datasheet, p. 4 — Table 5-2. DC Characteristics |
| supply voltage range | 1.7 V | — | 5.5 V | vcc1; DC Characteristics | Microchip datasheet, p. 4 — Table 5-2. DC Characteristics |
| operating temperature | -40 °C | — | 85 °C | Microchip datasheet, p. 15 — 12.1 Atmel AT24C64D Ordering Information | |
| clock frequency | — | 400 kHz | — | VCC = 1.7V | Microchip datasheet, p. 5 — Table 5-3. AC Characteristics (Industrial Temperature) |
| standby current | — | — | 1 µA | VCC = 1.7V; VIN = VCCor VSS; isb1; DC Characteristics | Microchip datasheet, p. 4 — Table 5-2. DC Characteristics |
| input capacitance | 6 pF | — | 6 pF | VIN = 0V; cin(a0, a1, a2, and scl); Pin Capacitance $ ^{(1)} $ | Microchip datasheet, p. 4 — Table 5-1. Pin Capacitance |
| output capacitance | 8 pF | — | 8 pF | VI/O = 0V; ci(sda); Pin Capacitance $ ^{(1)} $ | Microchip datasheet, p. 4 — Table 5-1. Pin Capacitance |
| rise time | — | — | 300 ns | tr | Microchip datasheet, p. 5 — Table 5-3. AC Characteristics (Industrial Temperature) |
| fall time | — | — | 300 ns | tf | Microchip datasheet, p. 5 — Table 5-3. AC Characteristics (Industrial Temperature) |
| memory size | — | 65.5 kbit | — | Microchip datasheet, p. 1 | |
| data retention | — | 100 year | — | Microchip datasheet, p. 1 | |
| program erase cycles | — | 1 Mcycle | — | Microchip datasheet, p. 1 | |
| page program time | — | 5 ms | — | tWR write cycle time, max | Microchip datasheet, p. 5 — Table 5-3. AC Characteristics (Industrial Temperature) |
Closest matches to AT24C64D
Frequently asked questions
What is the clock frequency when VCC = 1.7V?
The clock frequency is 400 kHz when VCC = 1.7V.
What is the data retention period for the AT24C64D?
The data retention is 100 year.
What is the fall time (tf) specification for the AT24C64D?
The fall time (tf) is 300 ns.
What is the input capacitance for pins A0, A1, A2, and SCL?
The input capacitance is 6 pF when VIN = 0V.
What is the memory size of the AT24C64D?
The memory size is 65.5 kbit.
What is the maximum operating temperature for the AT24C64D?
The maximum operating temperature is 85 °C.
What is the output capacitance of the AT24C64D?
The output capacitance is 8 pF at VI/O = 0V; ci(sda); Pin Capacitance $ ^{(1)} $.
What is the maximum page program time (tWR) for the AT24C64D?
The maximum page program time (tWR) is 5 ms.
What is the program erase cycle endurance for the AT24C64D?
The program erase cycle endurance is 1 Mcycle.
What is the quiescent current for the AT24C64D when VCC = 5.0V, Read at 400kHz, and icc1 under DC Characteristics?
The quiescent current is 400 µA.
What is the rise time (tr) of the AT24C64D?
The rise time (tr) is 300 ns.
What is the standby current for the AT24C64D under DC Characteristics conditions?
The standby current is 1 µA when VCC = 1.7V, VIN = VCC or VSS, and isb1.