= HF8V = / = SP8WJT = / = SP0106RZ =
HF-17826
PROJECT: HF-17826
DESCRIPTION: Cordless Telephone KX-TCM420H - base main board
TYPE: PQUP10773ZB_a
BRAND: PANASONIC
STATUS: u
PROJECT START DATE: 2018
LOCALISATION: DD
DOCUMENTATION: nil
TPD: TPD57826
DIMENSIONS: 190 x 141 mm NF
HARDWARE VERSION: 1.02
CPU CATALOG NUMBER: UC-352
CPU: TMP87CM53
CPU BRAND: TOSHIBA
FAMILY: TLCS-870
ROM: 32K (mask ROM)
RAM: 1K
MAX CLOCK: 8 MHz
THN ADDRESS: 0x20
TYPE: 0x60
HF-17826
Tested by connecting power supply, all seems work OK, but no further tests made.
ISD device is interesting, it can record 1 minute voice information, but here I cannot find datasheet. It must be reverse engineered.
Components:
4558 - OP AMP
AN6183 - ? (telephone line related)
BU4053 - switch
MC14LC5480 - PCM Codec-Filter [4]
SC111815 - High Performance Power Management IC
TB31224 - RF 1CHIP FOR 46/49 MHZ CORDLESS TELEPHONE [3]
TMP87CM53 - uC [1][2]
UPD6471A11 - ISD
TMP87CM53 pins
TB31224 block diagram
Sources:
[1] TMP87CM53F datasheet
[2] Toshiba TLCS Family
[3] TB31224 datasheet
[4] MC14LC5480 datasheet
[5] KX-TCM420-B user manual
Prefix 17
HF Register
Microcontrollers in my constructions and external equipment
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