The INS2651N is a National Semiconductor 'programmable Communications
Interface' chip. They second source it for Standard Microsystems
Corporation. The Toshiba part is an Intel 8085 compatible. I believe that
the logo you asked about is also the National Semiconductor Logo.

Here is sketchy info on the two chips:

The INS2651:

 (Title)            :INT|TR
Section            :INTERFACE
CAT0               :INT
Category           :Data Bus Circuits
CAT1               :TR
MDD Code           :SMC
Manufacturer's Name:STANDARD MICROSYSTEMS CORPORATION
Device Number      :COM2651
Disc               :*93
Date               :04/03/92
Oper               :RH
Transcode          :E
RBASE              :2651
MBase              :COM2651
Data Book          :2/88-80M
Data Book Page     :61
Function           :PCI (Programmable Communications
Interface) Serial/parallel r
receiver/transmitter~synchronous and asynchronous with b
baud rate generator.
Ser. Data Rate (kHz:1000 b/s
Supply Voltage (V) :5
Has Image          :N

The Toshiba part is:

 (Title)            :MPS|MPU|8B|2MHz
Section            :PROCESSORS/CONTROLLERS
CAT0               :MPS
Category           :Microprocessors
CAT1               :MPU
Sub-Category       :8 Bit
CAT2               :8B
MinorA             :2MHz
CAT3               :2MHz
MDD Code           :TOS
Manufacturer's Name:TOSHIBA AMERICA
Device Number      :TMP8085A
Date               :07/19/95
Oper               :JHR
Transcode          :A
RBASE              :8085
MBase              :TMP8085
Data Book          :DATASHEET
Ext. Data (bits)   :8
Int. Data (bits)   :8
Address (bits)     :16
Direct Address Rang:64K
Process Technology :NMOS
No. of Pins        :40
Instr Length, Min/M:8/24
Clock Rate (MHz)   :3
Reg GP             :12
Comments           :8080A compatible with multiplexed
bus operation.
Has Image          :N
MSG Page           :0305-22
MSG Page           :0456-109



>>> Mikael Bergqvist <mikael@ACADEMY.BASTAD.SE> 14 September 1996  12:18 pm
>>>
HELLO!
I would like to know if anyone know which kind of IC the INS2651N is
and the Tosiba TMP8085AP.

Does anyone know wich company's logo this is :
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