I1800 SERIES

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 I1800 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.

Sample Rate

Duration

8 KHz

6.4 KHz

5.3 KHz

4 HKz

I1806

6 secs

7.5 secs

9 secs

12 secs

I1810

8 secs

10 secs

12 secs

16 secs

ROSC

80 KΩ

100 KΩ

120 KΩ

160 KΩ

Non-Volatile Storage

message is retained for up to 100 years without power. In addition, the device can be re-recorded

typically over 10,000 times.

Basic Operation

design simplicity in a single-message application. Device operation is explained in section 7.2,

“Functional Description Example”.

Automatic Power-Down Mode

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.

Publication Release Date: May 2003

- 9 -

Revision 0.0