isd18b00 Winbond Electronics Corp America, isd18b00 Datasheet - Page 3

• Manufacturer Part Number: isd18b00
• Description: Single-chip, Single-message Voice Record/playback Device
• Manufacturer: Winbond Electronics Corp America

1. GENERAL DESCRIPTION
Nuvoton’s ISD18B00 ChipCorder
a special TryMe feature. It features wide operating voltage range, from 2.4V to 5.5V. Its sampling
frequency, ranging from 4kHz to 8kHz, is externally controlled via resistor at Rosc pin. This device
also includes microphone amplifier, anti-aliasing filter, multilevel storage array, smoothing filter and
speaker amplifier. Two external resistors are used to adjust the microphone amplifier gain for the
incoming signal. Thus, a minimum record/playback subsystem can be configured with a microphone,
a speaker, several passive components, two push buttons, and a power source.
Recordings are stored into on-chip non-volatile memory, providing zero-power message storage.
This unique, single-chip solution is made possible through Nuvoton’s patented Multi-Level Storage
technology. Voice and audio signals are stored directly into memory in their natural form, providing
high-quality, solid-state voice reproduction.
operation cycle with typical standby current 1µA. With the embedded Flash memory employed, data
retention up to 100 years and typical 100,000 erase/record cycles can be reached.
2. FEATURES
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Supply voltage: 2.4V to 5.5V
User-selected sampling frequency via external resistor
Variable duration selected by external resistor:
Microphone amplifier gain: user control via two external resistors
With feed-through enabled, r
remains active
Playback takes precedence over the Recording operation
Package option: die only
Temperature options: 0°C to +50°C
RECL
RECE
PLAYL
PLAYE
LEDR
LEDP
FT
TryMe : TryMe special mode
Sampling Frequency
Rosc
Sampling Frequency
ISD18B12
ISD18B24
: Feed-through microphone input to speaker outputs
: Level recording
: LED output for playback
: Edge-trigger, toggle on-off
: LED output for recording
: Level playback or looping playback
: Edge-trigger, toggle on-off
®
12 secs
6 secs
80 KΩ
8 kHz
8 kHz
Series is a single-chip single-message record/playback device with
ecord
microphone signal into memory while feed-through path
The device is automatically power down after each
7.5 secs
15 secs
6.4 kHz
100 KΩ
6.4 kHz
- 3 -
PRELIMINARY ISD18B00
18 secs
5.3 kHz
120 KΩ
5.3 kHz
9 secs
Publication Release Date: Oct 2, 2008
12 secs
24 secs
160 KΩ
4 kHz
4 kHz
Revision 0.5