Features: • Serial microcontroller interface (clock synchronized)• Built-in 512-Kbit mask ROM for fixed messages ROM playback time : Approx. 15 seconds (Fsam = 8.0 kHz) Approx. 20 seconds (Fsam = 6.4 kHz) Approx. 30 seconds (Fsam = 4.0 kHz)• Voice analyzing and synthesizing syste...
MS87V1021: Features: • Serial microcontroller interface (clock synchronized)• Built-in 512-Kbit mask ROM for fixed messages ROM playback time : Approx. 15 seconds (Fsam = 8.0 kHz) Approx. 20 second...
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.
Parameter | Symbol | Condition | Rated value | Unit |
Power supply voltage | VDD | Ta = 25 | 0.5 to 4.6 | V |
Pin voltage | VT | Ta = 25 | 0.5 to VDD+0.5 | V |
Output shortcircuit current | IOS | Ta = 25 | 50 | mA |
Power dissipation | PD | Ta = 25 | 1 | W |
Operating temperature | TOPR | - | 20 to +70 | |
Storage temperature | TSTG | - | 55 to +150 |
The MS87V1021 is a single chip recording and playback IC that is controlled by the microcontroller in serial mode, compresses voice with the 4-bit OKI ADPCM algorithm or 4-bit OKI ADPCM2 algorithm with high tone quality, and has 2-Mbit DRAM in which recorded data is stored and 512-Kbit mask ROM in which fixed messages reside. The MS87V1021 includes such features as Normal Recording and Playback, Delayed playback, Retroactive playback, Fast forwarding, and Rewinding.
The internal memory in which voice data is stored allows a recording/playback system to be constructed merely by externally connecting MS87V1021 to a microphone, a speaker driving amplifier, and a speaker.