isd1800 Winbond Electronics Corp America, isd1800 Datasheet - Page 9

• Manufacturer Part Number: isd1800
• Description: Single-chip, Single-message Voice Record/playback Device 6- To 16-second Duration
• Manufacturer: Winbond Electronics Corp America

7. FUNCTIONAL DESCRIPTION
Speech/Sound Quality
Winbond’s patented ChipCorder® technology provides natural record and playback. The input voice
signals are stored directly in nonvolatile cells and are reproduced without the synthetic effect often
heard with digital solid-state speech solutions. A complete sample is stored in a single cell, minimizing
the memory necessary to store a single message.
Duration
The ISD1800 devices offer single-chip solutions with 6 to 16 seconds of record/playback duration
capacity. Sampling rate and duration are determined by an external resistor connected to the ROSC
pin. These specifications apply with the required resistor value for playback duration.
Non-Volatile Storage
The
message is retained for up to 100 years without power. In addition, the device can be re-recorded
typically over 100,000 times.
Basic Operation
The
PLAYE (edge-activated playback), and PLAYL (level-activated playback). The
configured for design simplicity in a single-message application. Device operation is explained in
section 7.2, “Functional Description Example”.
Automatic Power-Down Mode
At the end of a playback or record cycle, the
standby mode, consuming typically 0.5µA, provided that Play REC, XCLK, and FT pins are LOW (see
DC parameters, section 10). During a playback cycle, the device powers down automatically at the
end of the message. During a record cycle, the device powers down immediately after REC is
released LOW.
7.1. D
ISD1800
ISD1800
Duration
I1806
I1810
ROSC
ETAILED
Sample Rate
product utilizes the on-chip Flash memory providing zero-power message storage. The
ChipCorder® device is controlled by the REC pin, and either of two playback pins,
D
ESCRIPTION
6 secs
8 secs
80 KΩ
8 KHz
7.5 secs
6.4 KHz
10 secs
100 KΩ
5.3 KHz
12 secs
120 KΩ
ISD1800
9 secs
- 9 -
device automatically returns to a low-power
12 secs
16 secs
160 KΩ
4 HKz
Publication Release Date: June 7, 2005
ISD1800 SERIES
ISD1800
Revision 0.3
parts are