參數(shù)資料
型號: PCA5007H
廠商: NXP Semiconductors N.V.
英文描述: Pager baseband controller
中文描述: 傳呼機基帶控制器
文件頁數(shù): 83/112頁
文件大小: 604K
代理商: PCA5007H
1998 Oct 07
83
Philips Semiconductors
Product specification
Pager baseband controller
PCA5007
dth
MGR161
ALE
PSEN
variable
execute time
DATA input
AL
driven
DATA input
AH driven
AH driven
P0
P2
3T
4T
5T
6T
0T
1T
2T
3T
4T
5T
6T
....
nT
s
s
ALE, PSEN cycle
tCE
T
instruction execution cycle
Fig.39 External access timing.
T being the half period of the
internal 6 MHz oscillator for
normal external access and of
TCLK for emulation, programming
and test modes.
The minimum duration of one
cycle is 6T. It can be extended by
increments of [0 to n]T if the
execution of an instruction needs
more time (dependant of V
DD
, T,
temperature and opcode).
Execution of an opcode goes in
parallel with the external access
cycle for the next sequential byte.
Eventually an already fetched
byte is discarded depending on
the executed instruction (e.g. any
jump or return).
12 CHARACTERISTIC CURVES
Fig.40 Measured battery current consumption as function of mean microcontroller instruction rate.
V
BAT
= 1.2 V.
(1) DC/DC converter in normal mode.
(2) DC/DC converter in standby mode.
handbook, full pagewidth
0
2
1
MGR144
(2)
(1)
0
0.4
1.6
MIPS
2
1.2
0.8
IBAT
(mA)
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