2.
Overview
The differences between each model are shown following table.
ORIGINAL
Model
Board
BTLE
Chipset
BTLE Chipset
FCC ID
Name
CMSIS-
DAP
Package
Internal
Flash
Memory
(KB)
Internal
Mask
ROM(KB)
Internal
Work
RAM(KB)
Internal
Silicon
OSC
Internal
Randam
Number
Generator
Model-1
SAPPHIRE-
678FSG
No
TC35678FSG QFN
40pin
256
384
192
Yes
No
2AKW4-
678FSG
Model-2
SAPPHIRE-
679FSG
No
TC35679FSG
No
384
192
Yes
No
This model
Model
Board
BTLE
Chipset
BTLE Chipset
FCC ID
Name
CMSIS-
DAP
Package
Internal
Flash
Memory
(KB)
Internal
Mask
ROM(KB)
Internal
Work
RAM(KB)
Internal
Silicon
OSC
Internal
Randam
Number
Generator
Model-1
SAPPHIRE-
67
C
FSG
Yes
TC3567
C
FSG QFN
40pin
128
216
128
No
Yes
2AKW4-
678FSG
Model-2
SAPPHIRE-
67
D
FSG
Yes
TC3567
D
FSG
No
216
128
No
Yes