HD404669 Datasheet, PDF (2/142 Pages) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

HD404669 Series
• Subsystem clock oscillator
32.768 kHz crystal oscillator for realtime clock use
• Interrupts
 External: 5 (including 3 edge-programmable)
 Internal: 4
• Subroutine stack: max. 16 levels including interrupts
• Low-power modes: 4
• System clock division software switching (1/4, 1/8, 1/16, 1/32)
• Instruction execution time
Min. 1 µs (f_OSC = 4 MHz, 1/4 clock division)
Min. 0.5 µs (f_OSC = 8 MHz, 1/4 clock division)
• Operating voltage
1.8 V to 5.5 V
2.2 V to 5.5 V (ZTAT™)
Ordering Information
Type
Product Name Model Name
ROM (Words) RAM (Digits) Package
Mask ROM
(standard
version)
HD404668
HD404668H
8,192
1,152
64-pin plastic
QFP
(FP-64A)
HD4046612
HD4046612H
12,288
HD404669
HD404669H
16,384
HCD404669
HCD404669
16,384
Chip^{*1 *2}
Mask ROM
(high-speed
version)
HD40A4668
HD40A4668H
8,192
64-pin plastic
QFP
(FP-64A)
HD40A46612
HD40A46612H 12,288
HD40A4669
HD40A4669H 16,384
ZTAT™
(high-speed
version)
HD407A4669
HD407A4669H 16,384
Note: 1. ZTAT™ chip shipment is not supported.
2. The specifications of shipped chips differ from those of the package product. Please contact our
sales staff for details.
Cautions about Operation
The mask ROM and ZTAT™ versions have been confirmed as fully meeting the reference values for
electrical characteristics shown in this data sheet. However, actual performance figures, operating margins,
noise margins, and other properties may vary due to differences in the manufacturing process, internal
2