47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
|
|
PART III. TYPES OF NAMS
|
|
|
|
NAM Types Used in Cellular Phones
|
|
|
|
NAM- Number Assignment Module - A 32 word by 8 bit PROM
|
|
The NAM contains all the information that can be programmed to the phone
|
|
directly from the handset. (i.e. SIDH,MIN,LOCK-CODE,etc.).
|
|
|
|
All phones except NEC will accept tri-state NAMs. NEC requires an open
|
|
collector NAM. Fujitsu phones will accept either open collector or tri-
|
|
state NAMs.
|
|
|
|
Brand Qualifications: Fujitsu and Alpine phones will not operate properly
|
|
with any Harris Brand NAM or with any Signetics brand NAMs with a part
|
|
number NOT ending with an "A". TI NAMs must not be used in GE Star models.
|
|
Panasonic has suggested only TI NAMs should be used in their phones. NAMs
|
|
are available in ceramic (F) or plastic encapsulation (N).
|
|
|
|
BRAND OPEN COL. TRI-STATE OPEN COL. TRI-STATE
|
|
=============================================================================
|
|
|
|
Signetics 82S23 82S123
|
|
|
|
Texas Inst. 74S188 74S288 TBP18SA030 TBP18S030
|
|
|
|
AMD AM27LS18 AM27LS19 AM27S18 AM27S19
|
|
|
|
Texas Inst. TBP38SA030 TBP38S030
|
|
|
|
Harris HM7602 HM7603
|
|
|
|
MMI 53/6330 53/6331
|
|
|
|
MMI 53/63S080 53/63S081
|
|
|
|
NSC DM54S188 DM54S288 DM74S188
|
|
|
|
NSC DM82S23 DM82S123
|
|
|
|
Motorola This is for a special NAM used in some Motorolas. Requires
|
|
an adapter.
|
|
|
|
Fujitsu MB7056 MB7051
|
|
|
|
*****************************************************************************
|