Version History
Specification Revision History
Version
eFH785840
1.0
Content
Initial version
1.1
1. Remove Crystal mode’s Idle application
2. Modify operating temperature
1.2
1. Rename EM78785840/41/42 →EM785840/41/42
2. Change IRC frequency deviation from +/- 5% to +/- 10%
Relative to EM785840s ROM-less, OTP and mask:
ROM-less
ICE5830
OTP
Mask
EM78P5840
EM78P5841
EM78P5842
EM785840
EM785841
EM785842
Table1: the relation between EM785830 and EM785840 series:
EM785830 series
EM785830ACP
EM785830ACM
EM785830ABP
EM785830ABM
EM785830AFP
EM785830AFM
EM78P5840 series
EM78P840P
EM785840M
EM785841P
PACKAGE
18 pin PDIP
18 pin SOP
20 pin PDIP
20 pin SOP
24 pin PDIP
24 pin SOP
EM785841M
EM785842P
EM785842M
Table2: the major differences between EM78P5830 and EM78P5840 series:
EM785830 series
256 byte
EM785840 series
CID RAM
ERIC mode
NA
Under 6M Hz
NA
IRC mode
NA
2M / 4M Hz
WDT source
External CNT1 input
P71 pull high
/RESET pin
PLLC pin
Crystal or PLL
NA
IRC1
Shared with P94
External pull high
Shared with P71
Shared with P70 and ERCI
Shared with P60 and P61
Internal pull high
/RESET only
PLLC only
Crystal input
XIN, XOUT
Table3: the major differences between ICE5840, EM78P5840 and EM785840:
ICE5840
EM78P5840 series
NA
EM785840 series
NA
CID RAM
CID RAM address auto
+1
1024 byte
V
NA
NA
8 or 16 (shared with
CNT1(**)
8 bit counter
8 bit counter
CNT2) bit counter
CNT2(**)
STACK
V
X
8
V
8
12
** CNT2 is only exist on EM78P5840/41/42 and EM785840/41/42, CNT2 is un-support on ICE5840.
ELAN [ ELAN MICROELECTRONICS CORP ]
