UPD178F098 View Datasheet(PDF) - NEC => Renesas Technology
Part Name
Description
Manufacturer
UPD178F098 Datasheet PDF : 52 Pages
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µPD178F098
1. DIFFERENCES BETWEEN µPD178F098 AND MASK ROM MODELS
The µPD178F098 is provided with a flash memory to/from which data can be written/erased with the device
mounted on a printed circuit board. The differences between the flash memory model (µPD178F098) and mask ROM
models (µPD178076, 178078, 178096, and 178098) are shown in Table 1-1.
Table 1-1. Differences between µPD178F098 and Mask ROM Models
Item
µPD178F098
µPD178076, 178078
Internal memory ROM structure Flash memory
Mask ROM
ROM capacity 60K bytes
µPD178076: 48K bytes
µPD178078: 60K bytes
External
2048 bytes
extension RAM
µPD178076: 1024 bytes
µPD178078: 2048 bytes
Internal ROM capacity selected by
memory size select register (IMS)
Equivalent to mask ROM
model
µPD178076: CCH
µPD178078: CFH
Internal extension RAM capacity
selected by internal extension RAM
size select register (IXS)
Equivalent to mask ROM
model
µPD178076: 0AH
µPD178078: 08H
Serial interface
4 channels
• 3-wire/SBI/2-wire/I2C bus mode selectable
• 3-wire (with automatic transmit/receive function)
• 3-wire
• UART
IEBus controller
Interrupt source
IC pin
VPP pin
Electrical specifications and
recommended soldering conditions
Provided
Not provided
24
22
Not provided
Provided
Provided
Not provided
See the relevant data sheet
µPD178096, 178098
µPD178096: 48K bytes
µPD178098: 60K bytes
µPD178096: 1024 bytes
µPD178098: 2048 bytes
µPD178096: CCH
µPD178098: CFH
µPD178096: 0AH
µPD178098: 08H
3 channels
• 3-wire/SBI/2-wire/I2C bus
mode selectable
• 3-wire (with automatic
transmit/receive function)
• 3-wire
Provided
21
Caution The noise resistance and noise radiation differ between flash memory versions and mask ROM
versions. When considering the replacement of flash memory versions with mask ROM versions
in the process from trial manufacturing to mass production, adequate evaluation should be carried
out using CS products (not ES products) of mask ROM versions.
Data Sheet U12920EJ1V0DS00
9
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