Freescale Semiconductor, Inc.
Ge ne ra l Re le a se Sp e c ific a tion — MC68HC05CT4
Se c tion 1. Ge ne ra l De sc rip tion
1.1 Conte nts
1.2
1.3
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Mask Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Signal Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.4.8
1.4.9
V
and V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
DD SS
V
and V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
SS2
DD2
Maskable Interrupt Request (IRQ) . . . . . . . . . . . . . . . . . . .21
OSC1 and OSC2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Reset (RESET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Port A (PA0–PA7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Port B (PB0–PB7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Port C (PC0–PC7/PWM). . . . . . . . . . . . . . . . . . . . . . . . . . .23
Port D (PD0/CMP3+, PD1/CMP1–, PD2/CMP12+,
PD3/CMP2–, PD4/SDIO, PD5/SCK,
and PD6/TCMP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
TCAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
FinT and FinR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
PDoutT and PDoutR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.4.10
1.4.11
1.4.12
1.2 Introd uc tion
The MC68HC05CT4 is a 44-pin member of the MC68HC05 Family of
microcontrollers (MCUs), which supports cordless telephone
applications. The memory map includes 5376 bytes of on-chip ROM and
256 bytes of RAM. The microcontroller unit has three 8-bit input/output
(I/O) ports: A, B, and C; and one 7-bit I/O port: D. Port C has pullup
options and keyscan capability. The MC68HC05CT4 includes a bird
core, a bird timer, a synchronous serial interface (SSI), 16-bit timer, a
MC68HC05CT4 — Rev. 2.0
General Release Specification
General Description
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